Created a "check" to scan for bad open & close PHP tags in PHP files

[zerojarvis]

This scans through all CLASSES subfolders across application & modules to check if PHP files

1. start with TAB or SPACE before "<?php" tag.
2. ends with closing "?>" tag

This is all in effort to reduce/eliminate extra HTML characters send.
(especially of concern when trying to use Kohana to serve up raw binary data like in Media Controllers).