Bump version of Problem Builder

[bradenmacdonald]

Description: This bumps the "Problem Builder" XBlock to the latest version that has been reviewed by the edX team, and includes the configuration settings necessary for authors to use it.

This will be the final version bump required for an upcoming Harvard course.

This version of Problem Builder includes:

• Problem Builder ("Mentoring v2") - the edx-release branch, which only contains changes reviewed by both OpenCraft and the edX team. (See this PR)
• Dashboard XBlock (part of Problem Builder)

There should be minimal consequences to this PR as it only affects a new XBlock not yet used in any courses.

Partner information: hosted on edx.org (Harvard)
Merge deadline: ASAP

Sandbox: http://sandbox2.opencraft.com:18010/

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[antoviaque]

@bradenmacdonald You will also need to add it to https://github.com/edx/edx-platform/blob/97f0cf108f6bd96ad678c6b3a168163f179e3e7d/cms/envs/common.py#L856 to allow it to be addable to a unit, this only allows to get the migrations to run.

[bradenmacdonald]

@antoviaque Ah, thanks - good catch.

[sarina]

Does this need to be added to the LMS as well?

[bradenmacdonald]

I don't think it matters, because all we need is for the tables to be created, and the cms and lms migrations are usually run together as part of paver update_db. But since the old mentoring was listed in both, and it could potentially be important in the future, I might as well add it in there too.

[bradenmacdonald]

OK, I added it to the lms/envs/common.py. I just amended the commit with that one-line change.

[bradenmacdonald]

@sarina This is the last chapter in the Problem Builder saga. Can you please review?

[sarina]

👍 to merge once tests pass.

[bradenmacdonald]

Thanks @sarina !

[bradenmacdonald]

test this please

[bradenmacdonald]

test this please