Added OnShowcaseEventListener.onShowcaseViewDidHide
Fixed onShowcaseViewHide being called multiple times

Only hiding the showcase on ACTION_UP
pointTo in ShowcaseView creates and adds hand properly
manual merge of ened's showcaseViewDidHide functionality
Merge pull request #96 from timediv/bugfix-hand

pointTo in ShowcaseView creates and adds hand properly
library build.gradle is now independent
OnShowcaseViewEventListener separated out

Listener now in own file. Also, null checked have been removed as now
have an empty implementation
Fixed missing import
Gradle updates
Rewritten calculateTextPosition and draw in TextDrawerImpl to be more
flexible
Center title and text in available space
Added padding for the actionbar at the top of the screen and made text
width wider
Centering text optional

The user can specify whether the text should be centered or stretched
over the available space
Fancier sample activity. ABS used in MultipleActionItemsSampleActivity, meaning it is backwards compatible
Sherlockified ActionItemsSampleActivity
Added some getters and setters
Handles null texts better
Split calculations out into own class. Made some methods public
Scale multiplier now has a getter and setter
Animation samples - using objectanimators to animate showcaseviews!