Added a few algorithms, will work on it over the weekend a bit.  Also changed settings.py inside healtharoundme at John Dungan's request.
Added things to definitions.py
Added a new algorithm for calculating single parents in an area, as well as a new model for standard deviation.  Also revised some older standard deviation algorithms to standardize them more.  In addition, more forms were added to Definitions.
Merge branch 'master' of github.com:CivicNinjas/HealthAround.me

Conflicts:
	data/census/definitions.py
	data/models.py
	healthdata/algorithms.py
	healthdata/models.py
Added algorithms for Percent Unemployment, Percent Income spent on housing, and percent children with a single parent in a given area.  I also changed around a few things in the utils, as well as created the tests for all of the new algorithms.
Finished up most of the Census Data Algorithms.
Fixed some formatting errors in test_algorithms
Merge harbieism, pep8 pass
Refactor algorithms into CensusPercentAlgorithm
Remove duplicate REST_FRAMEWORK setting
Merge pull request #22 from jwhitlock/harbieism

Integrate harbieism's new census algorithms