added some new images
Merge branch 'scrolling_platformer' of https://github.com/duke-compsci308-spring2013/vooga into scrolling_platformer
fixed bug where player is addded to coordinates (x,x) of startpoint instead of (x,y)
created a IBackgroundView implemented by Pixmap so that a filename can be stored by the LevelWriter
changed single argument constructor to assume it is given a filepath and filename in one string, instead of adding a default file path
deleted an example game package
updated LevelParser to read background
update classes that called the old constructor for pixmap. also fixed paintThumbnail in LEGrid so that it paints the background
removed unused BackgroundButton class
fixed conflict merge