Fixes #201 - Makes assets move to proper Active/Inactive section when toggled
Update unit tests to all tests pass.
Implement correct logic for is_active

Add is_active, backup, rollback methods to Asset model
Merge branch 'Update-Unit-Tests' into Fix-GH-201

Conflicts:
	static/js/screenly-ose.coffee
	static/js/screenly-ose.js
Add unit tests for new methods on Asset model
Change start and end date to be inclusive instead of exclusive in frontend and backend logic
Merge pull request #202 from richard-to/Fix-GH-201

Fixes GH-201 - Assets do not move to "Active Assets" section when toggled "On"
fix playlist refresh deadline: include assets starting in the future. fixes #209
Allow setting custom time limit for video assets (to be able to swtich to livestreams for a limited time)
Set duration to autodetect when mime check detects a video ressource
Accept RTSP Streaming URLS (e.g. from webcams)
Adapt URI checks to deal with RTSP urls
Add support for RTMP URLs
Autodetect duration for videos triggered when entering 0s duration in webinterface
Autodetect mime on copy improved, so that pasted rtmp and rtsp URLs will trigger the switch to the 'video' asset type
Merge pull request #210 from SebastianSchildt/video_streams

Support rtmp and rtsp video streams, play for fixed amout of time
Adds changelog for new update.
show hint for video duration auto-detection, update duration on asset type change
Bumps up copyright notice.
Merge branch 'master' of github.com:wireload/screenly-ose