EDX-284: Change settings (DISPLAY_HISTOGRAMS_TO_STAFF, INDIVIDUAL_DUE_DATES)
Merge pull request #179 from yokose-ks/EDX-284

EDX-284: Change settings (DISPLAY_HISTOGRAMS_TO_STAFF, INDIVIDUAL_DUE_DA...
EDX-329: Fix zendesk api
Merge pull request #180 from yokose-ks/EDX-329

EDX-329: Fix zendesk api
EDX-668: Fix untranslated messages for help_modal.html
Merge pull request #181 from yokose-ks/EDX-668

EDX-668: Fix untranslated messages for help_modal.html
EDX-414: Change csv module to unicodecsv module.
Merge pull request #182 from yokose-ks/EDX-414

EDX-414: Change csv module to unicodecsv module.
EDX-411: add ugettext and fix datadog encode
Merge pull request #183 from yokose-ks/EDX-411

EDX-411: add ugettext and fix datadog encode
EDX-608: Change requirements for ORA2
Merge pull request #184 from yokose-ks/EDX-608

EDX-608: Change requirements for ORA2
EDX-469: Make it possible for only admin user to handle personal information in instructor dashboard.
Merge pull request #185 from yokose-ks/EDX-469

EDX-469: Make it possible for only admin user to handle personal informa...
EDX-501: Make it possible for only admin user to see the link of old dashboard.
Merge pull request #186 from yokose-ks/EDX-501

EDX-501: Make it possible for only admin user to see the link of old das...
EDX-423: Add install settings for PollXBlock
Merge pull request #187 from yokose-ks/EDX-423

EDX-423: Add install settings for PollXBlock
EDX-265: add deactivate_bulk_email command
Merge pull request #188 from yokose-ks/EDX-265

EDX-265: add deactivate_bulk_email command