Added support for header overlays (a header without parallax effect).
Added javadocs to new 'header overlay' methods.
Really minor things.
New 'data set change' sample
Merge branch 'master' of https://github.com/mozarcik/FadingActionBar into dev
Merge master
Updated pom
Added missing gradle file
added custom view RootLayout which takes care of restoring header view and listview background after relayout
Merge branch 'master' of ../FAB_fix into dev
Merge commit '8d8ae0385267710b7db48e54acb3e651e0b22b88' into master-eincs

Conflicts:
	library/project.properties