ref #334 -- established tests for undesirable behavior with custom field naming collisions
ref #334 -- resolved tests for method/property -- but introduced conflicts in menu tests
ref #334 -- resolved conflict in TimberMenuItem with $title property from WP
added assertions for getting conflicting custom fields
added a test and a $force parameter should someone _really_ want to overwrite methods
Merge pull request #350 from jarednova/334_custom_field_conflicts

334 custom field conflicts