Change MIN_DX_FOR_HORIZONTAL_DRAG value to 5 to improve library sensibility during horizontal drag
Change ScaleTransformer isNextToLeftBound and isNextToRightBound method implementation.
Change method order in ResizeTransformer
Fix bug related with horizontal drag and x velocity when draggable view is released
Merge branch 'develop' into fix-horizontal-drag-problems

Conflicts:
	draggablepanel/src/main/java/com/github/pedrovgs/DraggableView.java
	draggablepanel/src/main/java/com/github/pedrovgs/DraggableViewCallback.java
	draggablepanel/src/main/java/com/github/pedrovgs/transformer/ResizeTransformer.java
	draggablepanel/src/main/java/com/github/pedrovgs/transformer/ScaleTransformer.java
Merge pull request #26 from pedrovgs/fix-horizontal-drag-problems

Fix horizontal drag problems for issue #20