significant optimizations to the progs interpreter, changed the runaway loop counter...

significant optimizations to the progs interpreter, changed the runaway loop counter to only count jump instructions (if/ifnot/goto), and redesigned the profile counting to use pointer math on batches of instructions instead of counting each instruction individually
changed prvm_profile report to show callcount before statements and builtincost, changed the sorting order to use summed callcount+statements+builtincost (and this made it print call counts for builtin functions as well)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@6326 d7cf8633-e32d-0410-b094-e92efae38249