Lcov 1.11 + CocoaPod

This pull request is to add lcov 1.11 (addressing #24) as well as adding support for adding the tool via CocoaPods. I've updated the README to show the appropriate instructions - the TL;DR is it's less flexible, but WAY easier to get started. 

If you do want to add CocoaPods support, please tag your repo once this is merged in with 1.0.0 and then push up to the [CocoaPods trunk](http://guides.cocoapods.org/making/getting-setup-with-trunk.html). 

Please let me know if you have any questions whatsoever.