added video call demo page
removing obj directory and .suo file as they are created by VS every time and always cause conflicts when merging. Removing these files won't affect anything.
Merge branch 'master' into denis1
Merge branch 'master' into denis1
Merge branch 'peerjs-integration' of https://github.com/denisstepanenko/nci-aria-project into peerjs-integration

Conflicts:
	Chatter/Scripts/app/app.js
Merge pull request #14 from denisstepanenko/peerjs-integration

added video call demo page