*Added Configuration option for Master User Avatar name and (in sandbox mode) password
*Added support for Master User in sandbox mode. Support lacks for grid mode still.
**Grid support is possible when remotely fetching avatar data by name and UUID is available
*Currently lacks parcel buying support. For now, in sandbox mode, log into master user information to own the parcel
*Created Parcel class to handle each parcel
*Created ParcelManager class to handle the Parcel Object
*For now, by default it is assigned to a fake avatar key and set for sale to L$0
* Enabled fastmode by default on world map requests (ordinary mode is just too slow)
* Reset some params involving agent appearance
* Tweaked simProfileBlock requests to return values which have been sighted on the wire before.
mingchen