[TxMt] Latex Config and backward compatibility questions

[Adam R. Maxwell]

Is TM_LATEX_MASTER required to be an absolute path?  I switched to the  
typeset_and_view branch on my work system and had an error in  
texMate.py determine_ts_directory(), since I have  
TM_LATEX_MASTER="master.tex" set in the project.  Removing that  
variable and switching to master.tex allowed me to compile with cmd-r  
as usual.  Sorry I don't have the exact error message; the project is  
on my work system.

thanks,
Adam