RSpec upgrade to 3

Upgraded to RSpec 3

In the process some other gems had to be upgraded also.
All the tests pass as expected.

@stephenrichards @axemonkey when you get a minute, please give it once over.

@jasiek if you've got a spare minute, it'd be cool if you could look at this also.

Thank you :japanese_goblin: :guitar: :fallen_leaf: 
Is `type: :controller` something that you need to put in to work with rspec3?