Add example rails application
Add a readme to the top level ruby folder
Merge pull request #27 from Yelp/update_ruby_examples

Add example rails application
Updated the objective-c code sample for v2
Merge pull request #28 from thibaudrobelain/objectivec-sample

Updated the objective-c code sample for v2
Updated README.md

Made some changes to the README to help readability
Fixed main typo in README

Also added link to xcode program arguments