Output exception message if value is compared to NULL in search.
Test case for comparison to NULL with generic operators.
Fixes typo in docstring.
Enable automated testing on Python 3.4
If model has query, but it has no attribute filter, use session

Query is None for models with latest Flask-SQLAlchemy.
https://github.com/mitsuhiko/flask-sqlalchemy/blob/master/flask_sqlalchemy/__init__.py#L567
Fix count() when LIMIT is set
Merge pull request #333 from fluxism/fix-limit

Fix count() when LIMIT is set
Alphabetizes imports
Merge pull request #315 from eirnym/model-query-none

If model has query, but it has no attribute filter, use session
Merge pull request #328 from frewsxcv/patch-1

Enable automated testing on Python 3.4
trim to 79 characters
rename params to data in post() to match patch() better
Merge pull request #335 from goodscloud/post-rename

rename params to data in post() to match patch() better
Merge pull request #325 from goodscloud/has-any-null-ops

support null/is_null sub-ops inside has/any ops
Merge pull request #324 from goodscloud/delete-404

fixes to DELETE method handling
PEP8
Merge pull request #299 from mjfroehlich/null_comparison_error_message

Show error message if search query tests for NULL using comparison operators
Records changes due to previous commits.
Catch validation exceptions in relations during update
Merge pull request #338 from adelq/master

Catch validation exceptions in relations during update