abstract the regionManager lookup into a helper.
add banner image to readme
Readme cleanups
install from bower on build

fixes #1182
Sort CollectionView/CompositeView according to comparator
Wrap Marionette in UMD, remove separate AMD version
docs for itemView => childView
Add before:destroy events to Regions.
Replace all instances of close with destroy
Setup view proxy methods for getOption and bindEntityEvents
Added emptyViewOptions to CollectionView
Normalize "Types" to "Classes"
Re-names renderModel to _renderRoot

CompositeView’s renderModel method was a confusing name. It has been
renamed to _renderRoot.
Fix Grunt dev
Replace static helper methods
Adds Marionette.VERSION
Fix remove xdefine test case in layoutView
Add missing layoutview table of content links
Add LayoutView region options
Remove IRC notifications