[WEB-17] created Meeting Model and ran a db:migrate
[WEB-17]
– removed isParticipating from database
– updated validation
Merge pull request #1 from TUD-KP-WebCall/development

Development
[WEB-17] added user model for authentication and creation of users
[WEB-17]
o meeting.rb – validation modified
o meetings_controller.rb – authentication added
[WEB-17]
o _form.html.erb – removed isParticipating property because it is not required when creating a new meeting
o _meetings_controller.rb – authentication disabled to make further development easier
Merge branch 'webcall-17' into development
Merge branch 'development' of github.com:TUD-KP-WebCall/WebCall into development