449: Merge pull request #906 from akatsoulas/1121868-django

Change version to django 1.4.18.

448: Merge pull request #904 from akatsoulas/events-admin-timestamps

Display timestamps in admin interface for the events app.

447: Merge pull request #889 from akatsoulas/events-admin

Filter events in admin panel by date range.

446: Merge pull request #877 from akatsoulas/1060782-events-api-traceback

[fix bug 1060782] Raise 404 if there are errors in the API response.

445: Merge pull request #864 from akatsoulas/fix-migration

[bug 1092989] Fix unicode error in migration.

444: Merge pull request #855 from akatsoulas/remove-vote-actions

[fix bug 1096206] Resolve old action items for voting objects.

443: Merge pull request #840 from akatsoulas/fix-mentor

[bug 1064233] Fix mentor to action item.

442: Merge pull request #839 from akatsoulas/fix-tests

Replace BUGZILLA_URL with get_bugzilla_url in failing tests.

441: Merge pull request #825 from glogiotatidis/master

[fix bug 1073402] Add X-COUNTRY-CODE to ical feed.

440: Merge pull request #822 from akatsoulas/add-event-metrics-admin

Add metrics in the event resource.