Plugins App additions

These are older commits that were never pushed.  Plugins development is
on hold while the Objects app is completed.
Plugins Module update

Older commit. Placeholder stuff
Setup bug fixes - critical

There was a critical bug that prevented uninstalling applications.
Objects App db schema update

Some changes to the db schema, backup of old setup.

This application is still in the later planning stages, so all changes
are considered transitional.