Add Timed Transcripts Editor.

Update changelog. Fixed bugs.
Update tests for use unique mongo db.
Add documentation to js.
Adding debugger comments.
Something is failing on sandbox blades 01. Will debug, and then
remove comments.
Add documentation to js.
Further adding debugger comments.
Add documentation to js.
Adding file sort for JS files.
Reverting debugging commits.
Fix for relative path, and sorting of JS files.
Fixes in comments.
Add Use existing funcitons.
Fix saving.
Add acceptance tests.
Fix bugs. Add acceptance tests.
Remove slugify.