Generate ComCtl manifests for the Win32 GUI executables
Merge pull request #256 from zrax/win-themes

Use Windows themes for the Win32 GUI executables
Add a Doxyfile and some plString documentation
Merge pull request #258 from zrax/doxygen

Add a Doxyfile and some plString documentation
Add Truncate() method to plStringStream, which truncates the buffer without reallocating memory
Add plFileName string specialization for filename manipulation
Add plFileName::Join static method to join paths together correctly
Clean up some miscellaneous non-optimal string uses
Add doxygen docs to plFileName
Merge pull request #257 from zrax/plString

Add Truncate() method to plStringStream
Merge pull request #259 from zrax/plFileName

Add plFileName