Housekeeping: Removed Nikic's PHP-Parser since it is no longer used. Nikic is still cited as the original author of many of the parser systems, but the files are no longer needed.
Merge remote-tracking branch 'origin/master'

Conflicts:
	PHP-Parser-master/grammar/kmyacc.php.parser
	PHP-Parser-master/grammar/rebuildParser.php
	PHP-Parser-master/grammar/zend_language_parser.phpy