Replaced use of now_utc with get_now, which takes USE_TZ into account and returns the correct datetime value
Django 1.4 Fix: ModelAdmin.change_view method's arguments changed and extra_context wasn't being set correctly, which most-notably caused the Revisions list to go missing
Merge pull request #64 from corpu/master

Fixes for USE_TZ and Diango 1.4's ModelAdmin.change_view argument changes