Fixes for PHP 5.3 and 5.4 stemmer extensions

The `php53-stemmer.rb` and `php54-stemmer.rb` formulae were both using the `AbstractPhp55Extension` class as a base class, which created a dependency to PHP 5.5, which does not seem correct.

Changed each file to the seemingly proper base class, and then the extension installed fine for PHP 5.4.
Fix php*-thrift module path
Upgrade php*-yaf to 2.3.1
Update PHPMyAdmin
Also upgrade sha1 (+1 squashed commit)
Squashed commits:
[5e8e621] Use Github release url for PhpMyadmin
*.po files are no available in the release (also see #957)
Bump to PHP 5.5.8
Bump to PHP 5.4.24
Updates php-cs-fixer to 0.4.0
Update php54 phalcon 1.2.5 (+2 squashed commits)
Squashed commits:
[31ecec4] Update php53 phalcon 1.2.5
[38cd808] Update phalcon to 1.2.5
Update Ioncube to 4.5.2 (+1 squashed commit)
Squashed commits:
[ada96b3] Update Ioncube to 5.4.1
Update php*-pdflib to 3.0.4
Upgrade pthreads to latest release
Upgrade php*-yaf to 2.3.2
Correct SHA (+1 squashed commit)
Squashed commits:
[0f7e147] Update to 0.10.4
INitial php56 add
Changed to be a sha checksum, and turned off phpdbg
Checkpoint commit after running converter script
Replaced PHP 5.5.x tarballs to be the PHP 5.6.0a1 tarball
Checkpoint
INitial php56 add