Fixed tests

Fixed tests by removing full uri in the ajax query since capybara uses a random
port when running the tests.
Also changed body in text to simplify comparisons as it was failing when
comparing the text.
Use some exotic UTF8 characters in the Rails example tests to be sure UTF8 characters don't get mangled.
Updated rspec-rails, adding pry for debug goodness
Fixed capybara tests

Made the body a simple string, changed the expectation matchers, used the new expect syntax
Not sure why but new Rspec uses rails_helper...
Refactored the JSON extraction to the model, added model test for it
This is now in the model, also added controller test for #create
Can't forget the feature spec require