Update codeception to 2.0.4
Upgrade php*-swoole to 1.7.4
Update phpMyAdmin to 4.2.7.1
fpm: change listen.mode to 0666 during install (refs issue #1153)
Fix php54-binpack dependency to php54
drush 6.3.0 (new formula)

The drush formula now requires a build dependency on composer which is
located in homebrew-php.

Closes #1305.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
php53-binpack dependency to php53 / php56-binpack dependency to php56
Upgrade PHP-CS-Fixer to 0.5.7
Upgrade PHP 5.5 to 5.5.16
Move abstract classes out of Formula directory
Remove obsolete hacks

Closes #1255.