Bump to PHP 5.4.22 (+14 squashed commits)
Squashed commits:
[a2e8609] Remove duplicate php-md formula
[cf3de54] Upgrade php*-yaml to 1.1.1
[07d9eb9] Upgrade php*-riak to 1.0.0
[37a28b5] Upgrade php*-riak to 0.9.1
[0ab4771] Update boris to 1.0.5
[0fb7b9d] Upgrade php*-raphf to 1.0.3
[c620e35] correct the setting prefix for opcache
[788cdeb] Bump to PHP 5.5.6.
[dc9acb5] added option 'without-package-index'

http://wp-cli.org/package-index/
https://github.com/wp-cli/wp-cli/wiki/Community-Packages
[f206b07] ADDED: helpful caveat to phpsh formula (homebrew has a default caveat for Python modules)
[e55a29b] Add some CLI info to abstract-php
[646e1f2] Upgrade php*-xcache to 3.1.0
[dcab0a1] Fix brew audit warning for php55-zmq
Fix brew audit warning message : "Trailing whitespace was found"
[73ee558] Fix brew audit warnings
Fix "Trailing whitespace was found" brew audit message warnings