diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index cd2b9b4222..b12bb456ea 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1769,19 +1769,12 @@ namespace OpenSim.Region.Framework.Scenes
 
             float localHalfAVHeight = 0.8f;
             if (Appearance != null)
-                localHalfAVHeight = Appearance.AvatarHeight / 2;
-
-            float posZLimit = 22;
-
-            // TODO: Check other Scene HeightField
-            posZLimit = (float)Scene.Heightmap[(int)newpos.X, (int)newpos.Y];
+                localHalfAVHeight = Appearance.AvatarHeight * 0.5f;
 
+            float posZLimit = (float)Scene.Heightmap[(int)newpos.X, (int)newpos.Y];
             posZLimit += localHalfAVHeight + 0.1f;
-
-            if ((newpos.Z < posZLimit) && !(Single.IsInfinity(posZLimit) || Single.IsNaN(posZLimit)))
-            {
+            if (newpos.Z < posZLimit)
                 newpos.Z = posZLimit;
-            }
 
             if ((flags & 8) != 0)
                 Flying = true;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index a0f784e667..7d3c832d1e 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -936,7 +936,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             Vector3 pos = presence.AbsolutePosition;
             if (!checkAllowAgentTPbyLandOwner(agentId, pos))
-                    return;
+                return;
 
             World.RequestLocalTeleport(presence, position, velocity, lookat, flags);
         }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index 8b70128e71..86c6d7c2c8 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -35,7 +35,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
     public partial class ScriptBaseClass
     {
         // SCRIPTS CONSTANTS
-        public static readonly LSLInteger OS_APIVERSION = 3;
+        public static readonly LSLInteger OS_APIVERSION = 4;
 
         public static readonly LSLInteger TRUE = 1;
         public static readonly LSLInteger FALSE = 0;
@@ -898,6 +898,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         //ApiDesc osTeleportObject flag: the rotation is the final rotation, otherwise is a added rotation
         public const int OSTPOBJ_SETROT         = 0x4;
 
+        //ApiDesc osLocalTeleportAgent no flags
+        public const int OS_LTPAG_NONE          = 0x0;
+        //ApiDesc osLocalTeleportAgent use velocity
+        public const int OS_LTPAG_USEVEL        = 0x1;
+        //ApiDesc osLocalTeleportAgent use lookat
+        public const int OS_LTPAG_USELOOKAT     = 0x2;
+        //ApiDesc osLocalTeleportAgent align lookat to velocity
+        public const int OS_LTPAG_ALGNLV        = 0x4;
+        //ApiDesc osLocalTeleportAgent force fly
+        public const int OS_LTPAG_FORCEFLY      = 0x8;
+        //ApiDesc osLocalTeleportAgent force no fly
+        public const int OS_LTPAG_FORCENOFLY    = 0x16;
+
         // Constants for Windlight
         public const int WL_WATER_COLOR = 0;
         public const int WL_WATER_FOG_DENSITY_EXPONENT = 1;
diff --git a/bin/ScriptSyntax.xml b/bin/ScriptSyntax.xml
index d01414b921..2282adaea1 100644
--- a/bin/ScriptSyntax.xml
+++ b/bin/ScriptSyntax.xml
@@ -1,4 +1,4 @@
-5b85f255-466f-238d-90ed-5726eaa2e67b
+24121ec8-c0a3-099d-8d83-64feaa32418c
 <llsd><map><key>llsd-lsl-syntax-version</key><integer>2</integer>
 <key>controls</key>
 <map>
@@ -1513,7 +1513,7 @@
  </map>
  <key>OS_APIVERSION</key><map>
   <key>type</key><string>integer</string>
-  <key>value</key><string>3</string>
+  <key>value</key><string>4</string>
  </map>
  <key>OS_ATTACH_MSG_ALL</key><map>
   <key>type</key><string>integer</string>
@@ -1539,6 +1539,36 @@
   <key>type</key><string>integer</string>
   <key>value</key><string>0x1</string>
  </map>
+ <key>OS_LTPAG_ALGNLV</key><map>
+  <key>type</key><string>integer</string>
+  <key>value</key><string>0x4</string>
+  <key>tooltip</key><string>osLocalTeleportAgent align lookat to velocity</string>
+ </map>
+ <key>OS_LTPAG_FORCEFLY</key><map>
+  <key>type</key><string>integer</string>
+  <key>value</key><string>0x8</string>
+  <key>tooltip</key><string>osLocalTeleportAgent force fly</string>
+ </map>
+ <key>OS_LTPAG_FORCENOFLY</key><map>
+  <key>type</key><string>integer</string>
+  <key>value</key><string>0x16</string>
+  <key>tooltip</key><string>osLocalTeleportAgent force no fly</string>
+ </map>
+ <key>OS_LTPAG_NONE</key><map>
+  <key>type</key><string>integer</string>
+  <key>value</key><string>0x0</string>
+  <key>tooltip</key><string>osLocalTeleportAgent no flags</string>
+ </map>
+ <key>OS_LTPAG_USELOOKAT</key><map>
+  <key>type</key><string>integer</string>
+  <key>value</key><string>0x2</string>
+  <key>tooltip</key><string>osLocalTeleportAgent use lookat</string>
+ </map>
+ <key>OS_LTPAG_USEVEL</key><map>
+  <key>type</key><string>integer</string>
+  <key>value</key><string>0x1</string>
+  <key>tooltip</key><string>osLocalTeleportAgent use velocity</string>
+ </map>
  <key>OS_NPC_CREATOR_OWNED</key><map>
   <key>type</key><string>integer</string>
   <key>value</key><string>0x1</string>
@@ -6116,33 +6146,6 @@
   <key>arguments</key><array>
    <map><key>a</key><map><key>type</key><string>float</string></map></map>
    <map><key>b</key><map><key>type</key><string>float</string></map></map>
-   <map><key>margin</key><map><key>type</key><string>float</string></map></map>
-  </array>
- </map>
- <key>osApproxEquals</key>
- <map>
-  <key>return</key><string>integer</string>
-  <key>arguments</key><array>
-   <map><key>ra</key><map><key>type</key><string>rotation</string></map></map>
-   <map><key>rb</key><map><key>type</key><string>rotation</string></map></map>
-   <map><key>margin</key><map><key>type</key><string>float</string></map></map>
-  </array>
- </map>
- <key>osApproxEquals</key>
- <map>
-  <key>return</key><string>integer</string>
-  <key>arguments</key><array>
-   <map><key>ra</key><map><key>type</key><string>rotation</string></map></map>
-   <map><key>rb</key><map><key>type</key><string>rotation</string></map></map>
-  </array>
- </map>
- <key>osApproxEquals</key>
- <map>
-  <key>return</key><string>integer</string>
-  <key>arguments</key><array>
-   <map><key>va</key><map><key>type</key><string>vector</string></map></map>
-   <map><key>vb</key><map><key>type</key><string>vector</string></map></map>
-   <map><key>margin</key><map><key>type</key><string>float</string></map></map>
   </array>
  </map>
  <key>osApproxEquals</key>
@@ -6159,6 +6162,33 @@
   <key>arguments</key><array>
    <map><key>a</key><map><key>type</key><string>float</string></map></map>
    <map><key>b</key><map><key>type</key><string>float</string></map></map>
+   <map><key>margin</key><map><key>type</key><string>float</string></map></map>
+  </array>
+ </map>
+ <key>osApproxEquals</key>
+ <map>
+  <key>return</key><string>integer</string>
+  <key>arguments</key><array>
+   <map><key>ra</key><map><key>type</key><string>rotation</string></map></map>
+   <map><key>rb</key><map><key>type</key><string>rotation</string></map></map>
+  </array>
+ </map>
+ <key>osApproxEquals</key>
+ <map>
+  <key>return</key><string>integer</string>
+  <key>arguments</key><array>
+   <map><key>ra</key><map><key>type</key><string>rotation</string></map></map>
+   <map><key>rb</key><map><key>type</key><string>rotation</string></map></map>
+   <map><key>margin</key><map><key>type</key><string>float</string></map></map>
+  </array>
+ </map>
+ <key>osApproxEquals</key>
+ <map>
+  <key>return</key><string>integer</string>
+  <key>arguments</key><array>
+   <map><key>va</key><map><key>type</key><string>vector</string></map></map>
+   <map><key>vb</key><map><key>type</key><string>vector</string></map></map>
+   <map><key>margin</key><map><key>type</key><string>float</string></map></map>
   </array>
  </map>
  <key>osAvatarName2Key</key>
@@ -6284,8 +6314,6 @@
   <key>return</key><string>string</string>
   <key>arguments</key><array>
    <map><key>drawList</key><map><key>type</key><string>string</string></map></map>
-   <map><key>startX</key><map><key>type</key><string>integer</string></map></map>
-   <map><key>startY</key><map><key>type</key><string>integer</string></map></map>
    <map><key>endX</key><map><key>type</key><string>integer</string></map></map>
    <map><key>endY</key><map><key>type</key><string>integer</string></map></map>
   </array>
@@ -6295,6 +6323,8 @@
   <key>return</key><string>string</string>
   <key>arguments</key><array>
    <map><key>drawList</key><map><key>type</key><string>string</string></map></map>
+   <map><key>startX</key><map><key>type</key><string>integer</string></map></map>
+   <map><key>startY</key><map><key>type</key><string>integer</string></map></map>
    <map><key>endX</key><map><key>type</key><string>integer</string></map></map>
    <map><key>endY</key><map><key>type</key><string>integer</string></map></map>
   </array>
@@ -6433,13 +6463,13 @@
  <map>
   <key>arguments</key><array>
    <map><key>avatar</key><map><key>type</key><string>string</string></map></map>
+   <map><key>target</key><map><key>type</key><string>string</string></map></map>
   </array>
  </map>
  <key>osForceOtherSit</key>
  <map>
   <key>arguments</key><array>
    <map><key>avatar</key><map><key>type</key><string>string</string></map></map>
-   <map><key>target</key><map><key>type</key><string>string</string></map></map>
   </array>
  </map>
  <key>osFormatString</key>
@@ -6754,15 +6784,15 @@
  <key>osKickAvatar</key>
  <map>
   <key>arguments</key><array>
-   <map><key>agentId</key><map><key>type</key><string>key</string></map></map>
+   <map><key>FirstName</key><map><key>type</key><string>string</string></map></map>
+   <map><key>SurName</key><map><key>type</key><string>string</string></map></map>
    <map><key>alert</key><map><key>type</key><string>string</string></map></map>
   </array>
  </map>
  <key>osKickAvatar</key>
  <map>
   <key>arguments</key><array>
-   <map><key>FirstName</key><map><key>type</key><string>string</string></map></map>
-   <map><key>SurName</key><map><key>type</key><string>string</string></map></map>
+   <map><key>agentId</key><map><key>type</key><string>key</string></map></map>
    <map><key>alert</key><map><key>type</key><string>string</string></map></map>
   </array>
  </map>
@@ -6781,6 +6811,16 @@
   <key>return</key><string>string</string>
   <key>arguments</key><undef/>
  </map>
+ <key>osLocalTeleportAgent</key>
+ <map>
+  <key>arguments</key><array>
+   <map><key>agent</key><map><key>type</key><string>key</string></map></map>
+   <map><key>position</key><map><key>type</key><string>vector</string></map></map>
+   <map><key>velocity</key><map><key>type</key><string>vector</string></map></map>
+   <map><key>lookat</key><map><key>type</key><string>vector</string></map></map>
+   <map><key>flags</key><map><key>type</key><string>integer</string></map></map>
+  </array>
+ </map>
  <key>osLoopSound</key>
  <map>
   <key>arguments</key><array>
@@ -7105,13 +7145,13 @@
  <key>osRegionNotice</key>
  <map>
   <key>arguments</key><array>
+   <map><key>agentID</key><map><key>type</key><string>key</string></map></map>
    <map><key>msg</key><map><key>type</key><string>string</string></map></map>
   </array>
  </map>
  <key>osRegionNotice</key>
  <map>
   <key>arguments</key><array>
-   <map><key>agentID</key><map><key>type</key><string>key</string></map></map>
    <map><key>msg</key><map><key>type</key><string>string</string></map></map>
   </array>
  </map>
@@ -7349,17 +7389,6 @@
   </array>
  </map>
  <key>osSetProjectionParams</key>
- <map>
-  <key>arguments</key><array>
-   <map><key>prim</key><map><key>type</key><string>key</string></map></map>
-   <map><key>projection</key><map><key>type</key><string>integer</string></map></map>
-   <map><key>texture</key><map><key>type</key><string>key</string></map></map>
-   <map><key>fov</key><map><key>type</key><string>float</string></map></map>
-   <map><key>focus</key><map><key>type</key><string>float</string></map></map>
-   <map><key>amb</key><map><key>type</key><string>float</string></map></map>
-  </array>
- </map>
- <key>osSetProjectionParams</key>
  <map>
   <key>arguments</key><array>
    <map><key>projection</key><map><key>type</key><string>integer</string></map></map>
@@ -7380,6 +7409,17 @@
    <map><key>amb</key><map><key>type</key><string>float</string></map></map>
   </array>
  </map>
+ <key>osSetProjectionParams</key>
+ <map>
+  <key>arguments</key><array>
+   <map><key>prim</key><map><key>type</key><string>key</string></map></map>
+   <map><key>projection</key><map><key>type</key><string>integer</string></map></map>
+   <map><key>texture</key><map><key>type</key><string>key</string></map></map>
+   <map><key>fov</key><map><key>type</key><string>float</string></map></map>
+   <map><key>focus</key><map><key>type</key><string>float</string></map></map>
+   <map><key>amb</key><map><key>type</key><string>float</string></map></map>
+  </array>
+ </map>
  <key>osSetRegionSunSettings</key>
  <map>
   <key>arguments</key><array>
@@ -7494,8 +7534,6 @@
   <key>arguments</key><array>
    <map><key>src</key><map><key>type</key><string>string</string></map></map>
    <map><key>value</key><map><key>type</key><string>string</string></map></map>
-   <map><key>start</key><map><key>type</key><string>integer</string></map></map>
-   <map><key>count</key><map><key>type</key><string>integer</string></map></map>
    <map><key>ignorecase</key><map><key>type</key><string>integer</string></map></map>
   </array>
  </map>
@@ -7505,6 +7543,8 @@
   <key>arguments</key><array>
    <map><key>src</key><map><key>type</key><string>string</string></map></map>
    <map><key>value</key><map><key>type</key><string>string</string></map></map>
+   <map><key>start</key><map><key>type</key><string>integer</string></map></map>
+   <map><key>count</key><map><key>type</key><string>integer</string></map></map>
    <map><key>ignorecase</key><map><key>type</key><string>integer</string></map></map>
   </array>
  </map>
@@ -7541,6 +7581,7 @@
   <key>arguments</key><array>
    <map><key>src</key><map><key>type</key><string>string</string></map></map>
    <map><key>start</key><map><key>type</key><string>integer</string></map></map>
+   <map><key>length</key><map><key>type</key><string>integer</string></map></map>
   </array>
  </map>
  <key>osStringSubString</key>
@@ -7549,7 +7590,6 @@
   <key>arguments</key><array>
    <map><key>src</key><map><key>type</key><string>string</string></map></map>
    <map><key>start</key><map><key>type</key><string>integer</string></map></map>
-   <map><key>length</key><map><key>type</key><string>integer</string></map></map>
   </array>
  </map>
  <key>osSunGetParam</key>
@@ -7579,8 +7619,6 @@
  <map>
   <key>arguments</key><array>
    <map><key>agent</key><map><key>type</key><string>string</string></map></map>
-   <map><key>regionX</key><map><key>type</key><string>integer</string></map></map>
-   <map><key>regionY</key><map><key>type</key><string>integer</string></map></map>
    <map><key>position</key><map><key>type</key><string>vector</string></map></map>
    <map><key>lookat</key><map><key>type</key><string>vector</string></map></map>
   </array>
@@ -7589,6 +7627,8 @@
  <map>
   <key>arguments</key><array>
    <map><key>agent</key><map><key>type</key><string>string</string></map></map>
+   <map><key>regionX</key><map><key>type</key><string>integer</string></map></map>
+   <map><key>regionY</key><map><key>type</key><string>integer</string></map></map>
    <map><key>position</key><map><key>type</key><string>vector</string></map></map>
    <map><key>lookat</key><map><key>type</key><string>vector</string></map></map>
   </array>
@@ -7604,6 +7644,13 @@
   </array>
  </map>
  <key>osTeleportOwner</key>
+ <map>
+  <key>arguments</key><array>
+   <map><key>position</key><map><key>type</key><string>vector</string></map></map>
+   <map><key>lookat</key><map><key>type</key><string>vector</string></map></map>
+  </array>
+ </map>
+ <key>osTeleportOwner</key>
  <map>
   <key>arguments</key><array>
    <map><key>regionX</key><map><key>type</key><string>integer</string></map></map>
@@ -7620,13 +7667,6 @@
    <map><key>lookat</key><map><key>type</key><string>vector</string></map></map>
   </array>
  </map>
- <key>osTeleportOwner</key>
- <map>
-  <key>arguments</key><array>
-   <map><key>position</key><map><key>type</key><string>vector</string></map></map>
-   <map><key>lookat</key><map><key>type</key><string>vector</string></map></map>
-  </array>
- </map>
  <key>osTerrainFlush</key>
  <map>
   <key>arguments</key><undef/>