Moved Proposal model from wiki to source code and updated ProposalModel wiki page.
Patch by: Pawel Solyga
Review by: Todd Larsen
Review issue: 362
Review URL: http://codereviews.googleopensourceprograms.com/362
class BaseCreation(object):
"""
This class encapsulates all backend-specific differences that pertain to
database *creation*, such as the column types to use for particular Django
Fields.
"""
pass