Fix \Slim\Environment path parsing regression

Bump version number
Added Missing Http Statuses From IANA Standard

Added missing Http Statuses from IANA (The Internet Assigned Numbers Authority).
http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
Fix urlFor adding extra slashes on Windows OS #663
Bump version
Changed from ltrim to str_replace to remove multiple backslashes
Merge pull request #664 from dangerousdan/develop

Added Missing Http Statuses From IANA Standard
Merge remote-tracking branch 'origin/develop' into interfaces