Changes since DRUPAL-6--1-1-BETA4:
- by aaron: Begin experimental support of multiple videos in a local playlist.
- by aaron: Restructure data for possible future automatic thumbnail discovery for accounts without Media API.
- #888422 by aaron: Fix Brightcove ID sometimes interpreted as Float?
- #825240 by joshk | aaron: Allow other modules to alter the MetaData before sending to Brightcove.
- #888422 by aaron: Typecast to string.
- by aaron: Associate brightcove emfield & emvideo field data.
by aaron: Store metadata in a separate table.
by aaron: Add update function to associate existing data.
by aaron: Read missing metadata on cron.