Traits and Affordances

Have traits and affordances working, and KevinsKitchen can plan out the
whole Brownies Recipe. Calls to the Trait text document parser have
been mocked out.
Merge branch 'Knowledgebase' of https://github.com/kofarrell/baking into Knowledgebase

Conflicts:
	src/edu/brown/cs/h2r/baking/Recipes/Brownies.java
merging
Merge branch 'kofarrell-Knowledgebase' into Knowledgebase