Merge pull request #234 from Kae7in/spell_difficulty

Spell difficulty
dont use south for unit tests #235
Merge pull request #236 from Kae7in/south_unit_tests

dont use south for unit tests #235
dynamic creatures
Merge branch 'master' of https://github.com/Kae7in/cs373-idb
get_rating_display added
adding creature images
Merge pull request #237 from Kae7in/creature-images

adding creature images
added rating display only if applicable
Added classification_get_display variable
fixed spelling error in spell difficulty