test needed; changing list_formulas (doesn't follow convention) to query_calculations and a calculations private variable model
test for query_calculations(); upped wait time to 300 and tests actually passed on my machine
Merge pull request #18 from modilabs/get_calculations

Get calculations
Merge branch 'master' of github.com:modilabs/bamboo.js into jan_14
added deletion of calculation since bamboo is working