Update to lcov 1.11
Add podspec.
use SRCROOT to export.
add getcov to podspec
Add llvm-cov-wrapper to podspec
Update envcov.sh to allow for CocoaPods use.
Point podspec at actual repo, clarify comment.
README Updates

- Added information about CocoaPods option
- Updated double-ticked inline code to use single-ticked
- Pulled everything onto continuous lines.
Fix alignment and add keyboard shortcut for cleaning the build folder.
Merge pull request #1 from designatednerd/master

Lcov 1.11 + CocoaPod