adding tests for ffmpeg-2.3
adding tests for php-5.5 and fixing  test for ffmpeg-2.3
Merge pull request #192 from freeman1988/master

Adding tests for ffmpeg-2.3 and php-5.5
added bson to gem cache list
adding new  test for java and ruby, and refactoring
Merge github.com:iron-io/iron_worker_ruby_ng
Merge pull request #193 from freeman1988/master

New tests for ffmpeg image
fixing test for php-5.5 image
Merge pull request #194 from freeman1988/master

fixing test for php-5.5 image
--task-delay parameter for scheduled tasks