Update tagging logic, infrastructure.

Interim commit - Display fine for list view.

refs #227
Revert "Update OPAL branch"

This reverts commit 9c3fd99bc115d72323bb2a65a9f7c93d76e8c411.
    Update tagging logic, infrastructure.

    Interim commit - Display fine for list view.

    refs #227
Tagging edits work w. new logic.

refs #227
Update tagging templates to update from Episode.getTags()

refs #227