Created MakeFileURL function that creates a proper file:// URL for both
platforms
Merge pull request #45 from bogdanteleaga/environs

Fixed http transport for windows compatibility
Changed file.Chmod with os.Chmod because file.Chmod fails horribly on windows
Merge pull request #92 from bogdanteleaga/tar-fix

Changed file.Chmod with os.Chmod because file.Chmod fails horribly on wi...