BuildSystem:

BuildSystem:
- increased inter-contrib module rebuild sanity;
  ie: if an svn update is done and a new x264 tarball is available, the system will fetch
  it and proceed to extract->patch->configure->build->install and because it is utterly
  dangerous (undefined results can easily occur) to re-extract over an existing extract,
  the appropriate steps are taken to first rm -fr the tarball extraction directory.
  This is generally good practice but I'm explaining it here in detail in case some
  developers are taking risks like editing files in the build/ tree and erroneously
  assuming they will not be overwritten by either this new build system or contrib
  (foreign) build systems.
- added contrib touch/untouch targets; see doc.
- updated docs accordingly.
- fixed typo for GCCargs.g.max which caused --debug=max to not operate properly.
- unofficial builds will no longer rebrand naming to 'NoNameBrand'

git-svn-id: svn://localhost/HandBrake/trunk@2223 b64f7644-9d1e-0410-96f1-a4d463321fa5