refs #8457 - Overlay buttons now gracefully handle content that is larger than max-height attribute. Overlay buttons now immediately show scrollbars if the content will need to be scrollable. LayerControls now hides overflow caused by jquery draggable/droppable. Updated LayerControls documentation.
refs #8457 - Fixed small bug to determine when to show scroll bars on overlay buttons.
Merge pull request #47 from oculusinfo/feature/8457-scrollable-layer-controls

Scrollable overlays / layer controls