Add Boolean field in the model for terms
Add button to UI
Add migration for terms column
Add terms to colander scheme
Display the validation error message for the checkbox
Merge branch 'master' into 528-terms-and-privacy
Remove all the uncessary code
Merge branch 'master' into 528-terms-and-privacy

Conflicts:
	openspending/model/account.py
	openspending/ui/templates/account/login.html
Fix the bug with the mailing list issue
Add a test to check that checkbox exists
Add test for validation
Merge pull request #558 from openspending/528-terms-and-privacy

Terms and privacy (Fixes #528)