1.7.0-beta1

This is a big release! Here are just a few of the new things:

• Added support for beanstalkd queues using the new ./console phpci:worker option
• Upgraded to Admin LTE
• Redesigned the build view
• Added a consolidated way of storing and viewing build errors
• You can now put projects into named groups (i.e. Client Sites, etc)

Lots more goodies to enjoy, and plenty of bug fixes too.