add condtional query tests
Merge remote-tracking branch 'origin/master' into conditional-query-tests
Merge remote-tracking branch 'origin/master' into conditional-query-tests
make rows a required argument to example queries
sample all unobserved columns
remove if rows check
Sketch crossvalidate function (not working yet)
Add simple crossvalidation tool
Merge pull request #33 from priorknowledge/crossvalidate

Implement crossvalidate function
Merge pull request #30 from priorknowledge/conditional-query-tests

add condtional query tests
Merge branch 'crossvalidate'
Use sparsified data in posterior enum tests
Add test_posterior_enum.test_datasets
Remove loom.util.protobuf_serving decorator
Add sparsity info messages to posterior enum tests
Avoid sampling trivial features in get_example_requests
Merge branch 'master' into sparse-debt

Conflicts:
	loom/test/test_posterior_enum.py