allow for student profile downloads to query into 'meta' field in the UserProfile json blob
Merge pull request #6386 from edx/cdodge/WL-137-normalize-user-profile-meta-column

[WL-137] allow for student profile downloads to query into 'meta' field in the Us...
Update pylint to 1.4.0
pylint: "-f parseable" is deprecated
Raise the pylint threshold

Updating pylint exposed a LOT of new pylint violations