* Housecleaning in FriendsManager
* Make sure LLSDString is never holding a null pointer
* Changes to Login.cs to prepare for the LLSD switch (it is not happening yet!)
* Fixed LLSD export for prims to export light/flex/sculpt data as well, importing that back in is still a TODO
git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@1540 52acb1d6-8a22-11de-b505-999d5b087335