Added camera scrolling on iPad (UNTESTED)

Implemented camera scrolling for iPad, no t sure if it will work though
as I can't test without an apple dev license (or an iPad). Shouldn't
affect anyone running on PC/Mac.
Upgraded Camera

-Implemented camera "scoop" on zoom
-Fixed bug where zooming all the way in or out would also cause the
camera to scroll
-Slowed down camera scroll speed on iPad. Also added public variable so
ipad scrolling speed can be further adjusted in the inspector.
Merge Branch "AlexPod" to master (take 2)