Test ioScene needed time set to the number of the beast to work (I'm not joking man!). Works now independent of computer speed (but should probably use an updated irr file sooner or later - is this from irrEdit as the format looks outdated?).
Remove unused variables in billboards test and testUtils.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4170 dfc29bdd-3216-0410-991c-e03cc46cb475