Fix recently introduced bug that caused irrlicht to sort the array on each search (instead of just when unsorted).
Also test 33 writeImageToFile currently fails when compiled with optimizations, but probably the test needs to lower requiredMatch.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3063 dfc29bdd-3216-0410-991c-e03cc46cb475