fixed bug with reading DOS formated CSV files with empty trailing column

git-svn-id: https://roadrunnerlib.googlecode.com/svn/branches/develop@1204 c0027639-9190-0b57-01eb-f09a03790dae
ran 64 bit clang tests

git-svn-id: https://roadrunnerlib.googlecode.com/svn/branches/develop@1205 c0027639-9190-0b57-01eb-f09a03790dae