cleanup
hotfix for elastic 1.x; fixes #129
re-added defacto_student (fixes #133); fixed plugin id
Merge branch 'release-3.3'

Conflicts:
	navigator/views/articleset_views.py
fixed unit tests
Merge branch 'release-3.3'
fixed uploader tests
Add API endpoint for applied rules; fixed SOH
add preprocess rules option (hack)
re-added test class
lazy import
API articles return medium name
restore display rule function
Added flush after article api post to fix tests
Firefox doesn't accept new Date("YYYY-MM-DD MM:SS:mm"), fixed. Fixes #131.
Firefox doesn't accept new Date("YYYY-MM-DD MM:SS:mm"), fixed. Fixes #131.
Updated APA Prof article upload in order to parse recent documents. Fixes #128.
re-added test class
Fixed bug in get_model_key() causing ModelField with db_column=None (autogenerated) to result in crash
Added TaskDetailView and changed codingjob export interface to use it