Superleksykograf can delete unified frame.
Superleksykograf can create new unified frame.
Minor UIX corrections.
Unified frame has also assigment to user.
Schema tab is default in edit view.

Revert __init__.py files

Moving selectional preference popup code from Slowal project. Making some adjustments to database models and  API.

* added local filtering
* added missing control heuristics and reporting for compar etc.
* udpated phrase descriptions
* switched to new Morfeusz homonym identifiers