[SVN] r7803 (Latex)

[Brad Miller]

Add support for choosing latex or xelatex based on included packages.
This set of changes should make the branch feature complete in terms of the functionality from the old command that I intend to bring forward.  Other stuff may go in based on testing and feedback.

Changed:
U   branches/typeset_and_view/Latex.tmbundle/Support/bin/texMate.py
U   branches/typeset_and_view/Latex.tmbundle/Support/bin/texlib.js
U   branches/typeset_and_view/Latex.tmbundle/Support/bin/texparser.py
U   branches/typeset_and_view/Latex.tmbundle/Support/nibs/tex_prefs.nib/keyedobjects.nib