add PHP 5.5, 5.6 to .travis.yml
Merge pull request #208 from sasezaki/patch-1

add PHP 5.5, 5.6 to .travis.yml
Turn on redis command 'rename'
Merge pull request #213 from wedy/turn-on-redis-rename-cmd

Turn on redis command 'rename'
dequeue
Alter dequeue - now accepting 'args' and "ID" arguments
Merge pull request #211 from wedy/dequeue

ability to dequeue jobs of specific queue
Allows a callable to be passed to Resque::setBackend for setting Resque::$redis

Conflicts:
	lib/Resque.php