Changed unit test to allow shebang lines like "#! /usr/bin/env python" in addition to "#!/usr/bin/env python"
Added more documentation to unit test for shebang lines
Removed typo as an example.
Merge pull request #488 from AlassaneNdiaye/fix_typo

Removed typo as an example.
Merge pull request #455 from yosinski/dev

Changed unit test to allow shebang lines like "#! /usr/bin/env python" i...