Closing tags on development branch

[e3betht]

Since files are often shared or re-used (via include(), require(), and their _once variants), any whitespace after the closing PHP tag can cause buffering issues, improper formatting for responses (like JSON or XML), broken Ajax requests, or problems with the timing of sending headers. Closing PHP tags are also prohibited by many style guides, including PSR-2, Zend Framework, Symfony, and CodeIgniter. I saw on Code Climate that many of your PHP-only files had closing PHP tags, many with a line of whitespace after it, so I cleaned these up. I also added the Code Climate badge to the readme.

[TheSerapher]

Thanks! Good change and will now be part of 1.0.2!