Merge pull request #67 from epalace510/master

Small optimizations is the users controller. Also commented all controllers.
Added Date + Time to pushpins.
Merge pull request #69 from dr4g1116/master

Added date and time on PushPins
Added comments to all the models and the mailer with its views. No comments on other views as we don't use them at the moment. If more is implemented, more comments will be added.
Merge https://github.com/Safaris/pushpin

Forgot to get the latest version before I started editing.