Bumped to deployment target of iOS 5.
Updated depreciated code

Closes #97
Tweaks to zoom to fill.
Tweaks to README
Added delegate as IBOutlet.

Closes #72
Allowed more zooming on different devices.
Demo Xcode project changes.
Action button tweak
Fixed bug with tapping and zooming.

Fixes #103
Resolved issues with reloading data.

Fixes 112 and fixes 106