* EventQueue be checked periodically to make sure it's running. Sometimes it dies. This is a blunt fix (along with the previous commit), but is needed to ensure that event queue-y things keep working.
* Adds a 500ms sleep between connecting to a simulator and CompleteAgentMovement - there's a race condition within the simulator which sometimes results in a faulty login, this seems to help.
* SetSeedCaps has an extra parameter, if the user's simulator hasn't changed, don't do anything.
* Add a lookup which lets you turn full Object UUIDs into LocalID, while LibreMetaverse prefers localID when referencing primitives, the official viewer uses UUIDs - and several things actually work better this way. (For example, avatars can spontaneously change LocalID sometimes). This way we can follow those changes.
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