brand safety updates, add close button to ad units demo
Merge branch 'master' of github.com:weareytm/Ragnarok
Video list updating code updated and refined
updated brand safety selection model
Merge branch 'master' of github.com:weareytm/Ragnarok
updated forecasting tool
Merge branch 'master' of github.com:weareytm/Ragnarok

Conflicts - resolved:
	youtube_analytics/utils.py
Merge branch 'master' of github.com:weareytm/Ragnarok
Merge branch 'master' into postgresdb