api: expect() with validators
valid: initial validation module
README: added support for data validation
valid: added todos, rearranged order of params to list_x_or_more()
valid: add max_length validators
util: move defaults/valid into util module
query: reorder imports
valid: options to alleviate strictness of dict validation
api: use util.valid and util.defaults instead of dispatch_opts
tests/api: test the api level convenience expect function
exceptions: better visual format for ValueIssue
valid: properly rename int_range as range and create convenience validator factories for ints
valid: docs
valid: adding most of the validators needed for django
valid: django validators and report api to a simple validator
tests/valid: odd
api: ability to specify allowed methods in api decorator
tests/valid: oops
valid: handle django related fields
tests/valid: oops