[SVN] Bundle commit 160

[Torsten Becker]

* initial commit of the diff bundle which should highlight
  normal, unified and context diff format and some subversion stuff.
  for more infos see the Diff/README.txt.

* added the diff and modula bundles to the global README.

* added a r-note to the modula-3 highlighting about the
  changes in r147 from chris thomas, thanks for this btw. :)
  i cant believe that i left such typos when i released it.

Changed:
A   trunk/Diff.tmbundle/
A   trunk/Diff.tmbundle/README.txt
A   trunk/Diff.tmbundle/Syntaxes/
A   trunk/Diff.tmbundle/Syntaxes/Diff.plist
A   trunk/Diff.tmbundle/info.plist
U   trunk/Modula.tmbundle/Syntaxes/Modula-3.plist
U   trunk/README