[#46632713] added public group in db seed
[finishes #46632713] all users belong to public group

@snowstorm Use `rake db:group:populate` to add existing users to the public group.
seed cucumber tests
[#46633415] added association for received poll
began migration to foundation 4
[#46633415] preloading data using HTML5 data
[#46633415] updated faye channels and stuff
javascript + cucumber is still a mystery to me
[#46632623] added group owners
[finishes #46632623] users can create groups
added _settings.scss
added _settings.scss
only group owners can ask questions
toggle chart
user answers on polls/:id page
chosen button turns green. but answer bar is still not blue
removed unnecessary lines
new cucumber test
Merge pull request #27 from snowstorm/groups

adds groups control