Improved TestClient:
added '@' as a command prefix to target one avatar only and to check, if a named avatar is logged in.
Improved TestClient to add new commands:
groupmembers GroupnameOrUUID - shows groupmembers UUIDs
grouproles GroupnameOrUUID - shows grouproles UUID and Names
invitegroup AvatarUUID GroupUUID RoleUUID* - invites an avatar into a group (without querying groupmembers first !-)
added public Dictionary<UUID, Group> GroupsCache = null; to TestClient.cs to refactor copy and paste code of group commands.
added friend.UUID to output of FriendsCommand.cs
swapped output of UUID and name in GroupsCommand.cs
git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@2989 52acb1d6-8a22-11de-b505-999d5b087335
