Fixed README
Update db/structure.sql (PG 9.3)
Set eager_trials and increase auto_trials for frequently failing filter_set tests
Reload table definition during migration
Cleanup and more readable code for MetaTerm and Keyword model

Remove submodule to see where it fails

Clarification and cleanup in the Keyword model

....argh ...

Reformatting meta term

finalize cleanup
Add (preliminary) queries to count meta_terms from a meta_context
Add as count to meta_terms_with_non_zero_count in meta_context