change POPLayerExtras visibility to public; fix #79
add AGGeometryKit+POP reference
Fix typo in README resource link
Merge pull request #85 from lutaaya/patch-1

Fix typo in README resource link
Fix simulator slow motion animations.

Using CACurrentMediaTime() directly broke slow-motion animation support. Use the same logic as -render to ensure consistent timing.
Added UICollectionView offset and contentSize properties
Merge pull request #88 from RuiAAPeres/master

Added UICollectionView offset and contentSize properties
Added borderColor and borderWidth
Merge pull request #94 from conradev/master

Added borderColor and borderWidth
Adding "Popping" as reference in "Resources"

Also sorting the list alphabetically
Merge pull request #96 from hfossli/patch-1

Adding "Popping" as reference in "Resources"
Use Travis CI's default xctool support

Details @ http://docs.travis-ci.com/user/languages/objective-c/.
Merge pull request #98 from LegNeato/master

Use Travis CI's default xctool support
Cancelling any ongoing animation in UIScrollView

If there is any UIScrollView animation of any sort:
- Say the user scrolled a little bit and the UIScrollView is decelerating. 
- Or `[scrollView setContentOffSet:p animated:YES]` was triggered.
- Or the user tapped on the statusbar to scroll to top

These animations will interfere with pop-animation since they will both work simultaneously. Setting `-[UIScrollView setContentOffset:animated:]` will cancel/stop any UIScrollView animation.
Fixed warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
Fixed fields initialization order warnings [-Wreorder]
Fixed warning: comparison of integers of different signs [-Wsign-compare]
Fixed warning: auto property synthesis is synthesizing property not explicitly synthesized [-Wobjc-missing-property-synthesis]
Fixed warning: weak instance variable '_delegate' is accessed multiple times in this method but may be unpredictably set to nil; assign to a strong variable to keep the object alive [-Warc-repeated-use-of-weak]
Added more compilation warnings.