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
Merge branch 'master' of https://github.com/H-uru/Plasma