Build 0.9934925

-Fixed game names not being properly cleared (I hope)
-Fixed some nasty potential portal issues (in some circumstances collision and other things could mess up).
-Fix some items loosing settings in special box
-Stopped some inappropriate items being placed in the special box
-Fixed checkpoint gravity fip issues (mostly effected non player things)
-Modified horizontal collision.. hopefully not broken anything.
-Fixed some pushing items issues (result of above fix)
-Fixed issue with erasing special block.. item inside is now also erased.
-Fixed a few default values
-Added the ability to add an end of game message on the level linking screen. End of game is defined as going through an exit that doesn't link to any more levels. With time could expand this to allow for multiple endings etc.. but not with the time I have at the moment.