Merge pull request #2 from gblancogarcia/master

1.4 version
GBInfiniteScrollView.h/.m:
Added vertical scrolling: GBScrollDirectionVertical. Added 2 new GBAutoScrollDirection methods: GBAutoScrollDirectionTopToBottom, GBAutoScrollDirectionBottomToTop. Added a scrollDirection flag.
Changed direction flag to autoScrollDirection.
Added a verbose mode for GBInfiniteScrollVIew Methods. Added a verbose debug flag.

CGViewController.m from the demo
Changed rotation animation to blocks.
Update GBInfiniteScrollView.xccheckout
Merge pull request #14 from 942v/master

Vertical scrolling & verbose debug.