Use unsemantic framework

Conflicts:

	playnshare/templates/index.html
Remove unsemantic
Use neat, typeplate, normalize for frontend

Conflicts:

	playnshare/templates/index.html
Stop tracking main.css
Fix incorrect path
Make tests into a package
Make model tests discoverable
Set default pytest args
Very basic User and Video models
List videos
Merge branch 'feature/define_video_model' into develop