Remove deprecation warnings from spec files

Deprecations inside of RAD still exist
Access the current example through new RSpec.current_example
Remove deprecation warnings
Move the example method out of private

RSpec doesn't like that it's private in a real app.
Formatters #stop receives a NullNotification
Update Callbacks to latest RSpec
Last cucumber failure

Still failing because of example_request not being able to set the file
and location metadata
Add back file locations to example_request
Update to full rspec 3
Merge branch 'master' into rspec-3

Conflicts:
	Gemfile.lock
	rspec_api_documentation.gemspec
Bump version to pre release
Merge pull request #133 from zipmark/rspec-3

Rspec 3
Use less restrictive dependency for rspec
Add response_field dsl
Supports non ascii characters in example description and resource name
Update gemspec dependencies to remove warnings from gem build
Merge branch 'supports-non-ascii-characters' of github.com:hanachin/rspec_api_documentation into hanachin-supports-non-ascii-characters
Fix ":" not being removed from the directory name

Add specs for the directory name

Closes #137
Merge branch 'add-response-field-dsl' of github.com:hanachin/rspec_api_documentation into hanachin-add-response-field-dsl
Get the test suite passing for response fields