[TxMt] LaTeX testers needed

[Charilaos Skiadas]

I just made some structural changes to the completion commands in the  
LaTeX bundle, both bibliography and label. It might be a bit slower,  
and more importantly I might have broken some stuff. So those of you  
brave enough to try it out, and without a paper deadline in 3 days,  
please update via svn (both the bundle and the global support  
directory) and let me know if you encounter any problems.

The reason for this change was to remove the large amount of code  
duplication that existed in these commands.

Haris