Ignores _sa_polymorphic_on as a column name, as suggested in #200.
Improve has/any search. Fixes jfinkels/flask-restless#180
Returns data documentation to correct location.
Adds documentation; simplifies code style.
Fixes code style in tests.
Adds documentation on how to use has and any in search.
Records fix to #180 in changelog.
fix POSTing to hybrid properties with expressions and setters
Merge pull request #202 from goodscloud/set-hybrid-property-with-post

fix POSTing to hybrid properties with expressions and setters
Record CHANGES due to previous commit.
Adds Location header in POST and Link header in GET
Requests require appropriate Content-Type.