Reduced extra pipe entities into single warppipe entity.

Fixed the maps tab so that you can make a copy of the current map with a new name.
Removed extra loadlevel/loadmap functions now that loading by mapname is a mainline feature.
Dummied out suspending game code.
Gave mario the ability to enter warppipes from below and to the left. Untested.
Fixed scope issue with tile selection that caused the tile class to be overwritten.
Added example mappack to demonstrate new warppipe mechanics.