Change custom matchers to support rspec 3
Add support for PATCH method in forms in rails 4 to be 'edit'
- http://github.com/nigelr/fracture/issues/6 shortened shoulda matcher style does not work for forms
- http://github.com/nigelr/fracture/issues/4 Added support for define_selector if no items added then the label is made into a selector eg. Fracture.define_selector(:something) - sets the items as '#something'