Corrected spelling for CompoundButton.onCheckedChange event.
Minor update.
Made constructors for events public so that they can be easily
instantiated for unit tests.
Merge branch 'develop' into GradleBuild

Conflicts:
	framework/src/main/java/org/robobinding/widget/compoundbutton/package-info.java
	framework/src/main/java/org/robobinding/widget/view/ClickEvent.java
	framework/src/main/java/org/robobinding/widget/view/FocusEvent.java
	framework/src/main/java/org/robobinding/widget/view/FocusLostEvent.java