Added a test for get_field_for_area intersections
Added a contains test for get_field_for_area
Changed highest_resolution_for_data

highest_resolution_for_data will now work even if
the centroid of the area_to_get is not inside a
boundary that contains field_to_get.  It will
only return None if there are no boundaries that
contain field_to_get in boundary_list.
Merge branch 'master' of github.com:harbieism/HealthAround.me into get_field_for_area_tests
Added some trash files to .gitignore.
Merge branch 'master' of github.com:harbieism/HealthAround.me into get_field_for_area_tests
Added a test for get_field_for_area

Added a test for get_field_for_area for when area
includes boundaries that are not do not have
field_to_get.
Merge branch 'test/get_field_for_area/outside' into get_field_for_area_tests
Added test for get_field_for_area for lack of data
Merge branch 'test/getFieldForArea/noData' into get_field_for_area_tests
Merge branch 'get_field_for_area_tests' into adding_tests
Setup for writing highest_resolution_for_data test
Test setup retooled to make it more modular
Added tests for when area isn't in any boundary
Changed formatting, added tests for states.
Added tests for when data is present at all levels
Added tests for when no data is available.
Setup tests for get_field_for_area_percent.
Removed unused fields from the census test models
Fixed a bug with the reduced census fields