255: Shared Writing Input

This 1st pass at a shared writing question, is basically Journal with a minimum character count before submission added.

Jira: BRIX-255
Fixed problem with goog.json
Restoring functionality and updating question to new MC format so it works again.
This demo file now uses new labels, although clicking on them is broken and I don't know why (have updated to new event Id names and eventdetail property names).
I have stopped it from erroring, but because this is using a dummy question and the submitManager format has changed the questions are no longer answerable.  We should merge the shortAnswer branch and use the protonumeric questions there.
Converted multiple choice questions to new form and made them work.
This file needs to be upgraded to new graphs, captioned images and labels, particularly for the one on page 2 where the data is supposed to swap.  It's currently broken using the old graph, which is mysterious because nothing should have changed there. This file also has a numeric question which should be converted to proto when the Short Answer branch is merged.
More of this file works than has any right to.  In order to finish, we should refactor thumbnail carousels, and give them a data area (just the image), then layer labels on them. The last question won't work until we make labels into a valid presenter for hotspots, which we should do at some point.
Replacing this old example with the new working functionality. This page should eventually get a demo of checkboxes too perhaps.
363: Default statistics display

Create a default statistics display for:
- use when we haven't created a specific bric stats presenter for a particular assessment type
- use when there are no statistics supplied

Jira: BRIX-363
363: bump version to 2.0.0-dev.1 for default stats assessment support

Jira: BRIX-363