Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
Initial port timed exams
more porting timed exams
Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
cherry-picked unload message code change
Merge branch 'master' of https://github.com/Stanford-Online/class2go
More Khan stuff to remove
Merge branch 'master' of https://github.com/Stanford-Online/class2go
alert to warn users if they are using IE that their work won't save
Fix for content-disposition, or 10 year s3 urls, problem (#1879).

The settings part of this is to move the relevant param above the import
of monkeypatch. The models part is just to stop stripping the url.
Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
For non-surveys, change val[0] to val

For downloading of CSV-submissions to work, it needs to report
the entirety of the submitted values, not just the first character.
Merge pull request #2073 from Stanford-Online/jbau-interstitial

Jbau interstitial
Removed	special	case for surveys in view_submissions_to_grade

Since we don't use it for survey reporting anyway, I don't believe
Change confirmation message which didn't make sense for autograded timed exam
Remove remove_querystring function altogether.