PHP Code Sniffer 1.5.1

Updated to version 1.5.1.

Version 1.5.1 added a new installed_paths config value to allow for the
setting of directories that contain standards.

The formula adds #{etc}/php-code-sniffer/Standards as such as
configuration. This will let other formulas install standards and link
them there - then they will survive an upgrade of php-code-sniffer.
Added Drupal Coder Sniffer formula.
Added "brew tap --repair" information
Fix php55-ioncubeloader class declaration (+1 squashed commit)
Squashed commits:
[481c158] Updated Ioncube version number to 4.5.0 for PHP 5.3 and 5.4, SHA1 updated by 5c833e070e7ceb66b71d3f7f00fed518d3619715
Added Ioncube for PHP 5.5, currently 64-bit only so added architecture dependency
Update php*-riak to 1.1.2
Update pdflib to 3.0.1
Update php*-timezonedb to 2013.9
Update php*-riak to 1.1.3
php-code-sniffer: cleanup formula
PHP bug #62460 is already fixed
drupal-code-sniffer: added drush integration.

Includes some cleanup of the formula.

Extra benefits if a pull request on the "drush" formula is accepted, see
Homebrew/homebrew#25245.
Update php*-http to 2.0.3

References issue #927
updated php5*-varnish sha1
Update php5*-dmtx to 0.0.3
Update caveats for php extensions to include CLI instructions

Thanks to @hkdobrev for the idea via pull request #853
Addition of php5*-pdo-dblib
Fix php53 on OS X 10.9

PHP was missing the logic to exclude an executable extension for OS X 10.9

Fixes issues #928
change url (+1 squashed commit)
Squashed commits:
[25f628f] add codeception
Upgrade codeception to 1.8.1