Conflicts:
	test_crowdxblock.py
	tests.py

changes to make colon/semicolon/quotes in hint submission not mess up the feedback (replace : with a word, for example). replacement words are not elegant but they aren't anything someon would type in so they will be fine for now i think.

submit hint input appears correctly, default hints no longer show up for answers that don't have hints, all hints for answer show up (limit later)