Object spells - fixed two minor bugs. Added the possibility of making a critical failure effect for the spells.
Singularity beacon - added to traitor spawn list. Must be screwdrivered to the floor before you can activate it.
Singularity - optimised the code a bit.
git-svn-id: http://tgstation13.googlecode.com/svn/trunk@1709 316c924e-a436-60f5-8080-3fe189b3f50e