Merge pull request #3 from Harvard-University-iCommons/develop

Looks good!
changed database back to QA in local.py
fixed secure.py.example; updated production settings.
Merge branch 'develop' of github.com:Harvard-University-iCommons/icommons_lti_tools into develop

# By Mysore, Sapna
# Via Mysore, Sapna
* 'develop' of github.com:Harvard-University-iCommons/icommons_lti_tools:
  Fixed the whitespace on sorting
Merge branch 'develop'

* develop:
  fixed secure.py.example; updated production settings.
added production gunicorn config file
Merge branch 'develop'

* develop:
  added production gunicorn config file
make the reserves link “disabled” by default — this will make it show up as greyed-out in Canvas, and instructors can choose to drag it into the active navigation
moved the LTI OAuth credential values into env-specific configs; in production, pull those values from secure.py
Merge branch 'develop'

* develop:
  moved the LTI OAuth credential values into env-specific configs; in production, pull those values from secure.py
  make the reserves link “disabled” by default — this will make it show up as greyed-out in Canvas, and instructors can choose to drag it into the active navigation
added example of how to specify LTI credentials in secure.py
removed extra URL mapping
configure secure_scheme_headers
don’t try to get the course instance if the course_id (from Canvas) isn’t a number
fixed issues outlined in this doc https://docs.google.com/a/g.harvard.edu/document/d/1-2D8Z-YeLeYLzSlYRIm-54YSWcZzg4A3VDFJ3Ifqzv4/edit
Merge branch 'feature/LectureVideo' into develop
config changes to email admins about errors in production
Merge branch 'develop' of github.com:Harvard-University-iCommons/icommons_lti_tools into develop

# By Parker, Eric P
# Via Parker, Eric P
* 'develop' of github.com:Harvard-University-iCommons/icommons_lti_tools:
  fixed issues outlined in this doc https://docs.google.com/a/g.harvard.edu/document/d/1-2D8Z-YeLeYLzSlYRIm-54YSWcZzg4A3VDFJ3Ifqzv4/edit
  changed database back to QA in local.py
get_user tool now working
use redis and cached_authentication_middleware to reduce the number of db queries on each request