do not render layout in xhr request
remove the restriction for rails version
play nice with Rails 3 and 4
Merge pull request #50 from vast/rails4-support

Rails4 support which plays nice even with Rails 3
Add a Bitdeli badge to README
Merge pull request #53 from bitdeli-chef/master

Add a Bitdeli Badge to README
Merge branch 'rails4'

Conflicts:
	.travis.yml
	api_taster.gemspec
Update RSpec to play nice with Rails 4.1 and have test passing.
Remove from travis config need to test against Rails 3.x since this version of api_taster is incompatible