Provided general layout stuff, removed scaffolds.css because of conflicts with bootstrap.css and set up a basic navbar.
layout adjustments and simple layout for conference
added RTCAdapter for compatibility
Channel Creation
Created P2P Connection
Stream offering
Own Stream is shown in video tag.
added video elements to Meeting's detail page.
Added ability to view at most one remote stream...
Merge pull request #3 from TUD-KP-WebCall/development

Basic WebRTC implementation as Sprint Result for Sprint 01