commit against #1637

old code was not creating ready version until file was saved,
so the recent versioning bug only created draft versions, which
nuked the course materials page.

Moved the ready instance creation up
fixes #1926 by setting reverseview
Merge pull request #1927 from Stanford-Online/jbau-upload-robustness

Jbau upload robustness
a bit more defensiveness in is_synced()
Fixes #1929 uses right title for videos with quizzes
Merge pull request #1928 from Stanford-Online/jbau-upload-robustness

a bit more defensiveness in is_synced()
upgrade to storages=1.1.6, boto 2.7.0 (#1923)
remove storages response_headers() patch (#1923)

We still need this patch, we are just doing via monkeypatching instead
of patching the file on disk (thanks to @jrbl).
videocheck, print id and filename to help debugging
Merge pull request #1934 from Stanford-Online/sef-1923-boto-storages-versions

Upgrade boto and storages versions (#1923) to master
section subtitles
subtitle migration
subtitles for contentsection
use dictionary.get() in cachestats (#1921)

based on feedback from @jbau in code review, small little improvement.
Merge pull request #1936 from Stanford-Online/jbau-section-sub-title

Jbau section sub title
Merge pull request #1937 from Stanford-Online/sef-1921-cachestat-followup

use dictionary.get() in cachestats (#1921)
20 minute cache leftnav
Merge pull request #1938 from Stanford-Online/jbau-20min-leftnav

20 minute cache leftnav
Merge pull request #1918 from Stanford-Online/jrbl-1825-editing_exams_keep_contentgroup

Jrbl 1825 editing exams keep contentgroup
#1945; Interactive quiz summary in-line report.