Merge pull request #211 from ChrisGrant/master

Restructured the project so it is now available as a cocoa pod.
Merge pull request #212 from ChrisGrant/master

Made some files private to the pod, updated headers for documentation.
Merge pull request #213 from ChrisGrant/master

Pod updates.
Merge pull request #214 from ChrisGrant/master

Added before install to travis.yml to get the build to work.
Added build status.