(TimS, MikeL): Chorus Hub: Fixed getting revision of file when it was not changed in the tip revision.
Chorus Hub: Optimized getting repository information when IDs are not needed (1000x speed increase).
(TimS, MikeL): Converted spaces to tabs.
Changed method comment to better reflect what it does.
Merge pull request #29 from FoolRunning/master

Fixes and performance enhancements for Chorus Hub used with Paratext