Ignore .suo files

Avoid annoying commit requests for .suo files.
Make LookAt from login response public

look_at returned from the login response message is now available public
and can be accessed using GridClient.Self.LookAt. This solves a problem
where the actual look direction gets destroyed somewhere in the login
process.
Merge branch 'master' of https://github.com/shyrobbiani/libopenmetaverse