Add LeftPanelViewController header and properties to MainViewController, and removed getLeftView placeholder code
Allocate and initialize LeftPanelViewController in getLeftView

Added a check to see if the view has already been instantiated,
if not, the view is created, and added to the subview with the delegate being set to the CenterViewController. Finally, shadows are being displayed with a slight offset.
Untrack .DS_Store and xcuserstate
Untrack xcuserstate AGAIN
Merge branch 'refs/heads/next'

Conflicts:
	Navigation.xcodeproj/project.xcworkspace/xcuserdata/mike.xcuserdatad/UserInterfaceState.xcuserstate