Fix paver python prereq paths
Add ADDL_INSTALLED_APPS to studio for parity with lms
Fix message.
Updates to problem location for opaque keys
Remove package_id and remove lower_ stuff from migrator
STUD-1603
Opaque-keys: fix pep8 violations
Opaque-keys: fix pylint violations
StaffFactories accept `course_key`s, not `course`s. Make that clear in the interface.
Fixed some TODOs, removed irrelevant ones
i18n: Make values that has 'display_name' be displayed localized in editor

Dictionary values like Boolean, or some other value types which has 'display_name' can now be displayed with the localized version.
Added trailing slashes otherwise the course_id regex sometimes eats up get parameters.

LMS-2738
Add Oriya language
Add Gujarati language
Update translations (autogenerated message)
Merge pull request #3884 from edx/sarina/052714-translations

Update translations
Merge pull request #3874 from edx/sarina/opaque-keys-cleanup

Sarina/opaque keys cleanup
Merge pull request #3888 from edx/dhm/bug_get_children

Redirect most studio access through draft modulestore
Merge pull request #3842 from edx/ahodges/documentation/LMS2748

Updates to problem location for opaque keys
Get rid of skiptests
Split mongo correctly serializes and deserialized references
STUD-1592, STUD-1603, LMS-2642