Added birthdate validation to bhsi applications
New attribute is_venture_not_for_profit for bhsi application model.
Added validations and view changes for is_venture_not_for_profit attribute.
Fixed wrong haml identation.
Removed budget_previous_year and budget_current_year from schema.
Merge pull request #2 from frangucc/martin/20-mar-fixes-to-bhsi-model-and-views

Martin/20 mar fixes to bhsi model and views