created initial packages for scroller framework
checkstyled and refactored LEController
added JButtons for backgrounds. Images do not show up yet
LEToolsView can pass the command to the LEController to change the background
LevelEdito recognizes command and send to LEGrid
made it so level takes the background from LEGrid when constructed
more refactoring
fixed conflicts
working on background images
implemented Level Editor support for background on the view side
small changes to sprite library hierarchy
solved conflicts