* changed integer for startDate to DateTime
* adjusted validation of meeting time
* adjusted _form for new meetings
Merge branch 'development' of github.com:TUD-KP-WebCall/WebCall into development
modified migration to convert dates in order to avoid reset.
Merge branch 'master' into development
WEB-58 – typo
basically finish the private chat function. all chat demo run in the http://localhost:3000/user.

at default, you can talk to all of online participants, if you want to privately talk to a user, click the named button. then you can only talk to her or him.
Merge branch 'master' into development
general UI adjustments
WEB-54 – adhoc meetings implemented

o join.html.erb
	– handle if meeting is actually nil and set a notification form if so
o _header.html.erb
	– drop down menu for scheduling a meeting (standard + adhoc)
o meetings_controller.rb
	– extended notify method to handle adhoc meetings
Merge branch 'development' of github.com:TUD-KP-WebCall/WebCall into development
WEB-62 EventBroker implemented.
o RTCAdapter.js: formatting issues
moved Codec optimizing from WebRTC to plain JS RTCAdapter.js
bugfix: if a channelName doesn't start with '/' this will be prepended.
WEB-53 changed connections dictionary to participant dictionary that contains the connection.
WEB-45 added the private reverse channel to directly communicate with one participant.
CONNECTION ESTABLISHMENT DOES WORK NOW WITH 1,2,3,4 PARTICIPANTS. I didn't want my MacBook to test more ;)
WEB-59 changed TURN server to webcall.markus-wutzler.de
moved Event 'rtc.user.left' to WebRTC._handleGoodBye
bug fix that closed WebSocket Client Connection after a participant left the conference.
WEB-7 Added Participant list
UI optimizations for conference page.
Merge pull request #5 from TUD-KP-WebCall/development

Development