Added save button and IBAction.
Removed Add Event button and added swipe label.
Adding swipe functionality.
A few things! Saves to NSDefault; loads from NSDefault (and recongizes properly if this is the initial load); throws up an error is save is attempted with no data.
Added the left swipe gesture, ensures that it saves, and added a warning message if trying to save with no event description.
Fixed bug where a protocol warning error would appear. Also, cleaned up some code.
Added some relevant comments.
Added a few more comments to make the code a bit more refined.
Merge pull request #4 from scottcaruso/week4

Merging Week 4 branch up to Master.