Merge pull request #22 from ucberkeley/features/chat

chat system integrated
Timer now has a required argument.
Style for "hidden" submit button on welcome page was moved into
application.css (was an inline style before - yuck).
template_helper.rb renamed to timer_helper.rb to make it more obvious
what's in that file.
logic to create form tag in TasksController#page was broken
Jasmine specs for Continue button now verify that it calls form-submit
with correct URL and value
Task controller specs now verify that this results in logging the event
added code to inhibit actual form submission when Continue button pressed
final changes to make handler remove itself after being called first time
longer field for sequencer state
default activity now starts every 1 minute
removed asset issue
updated template writer documentation in README
Merge branch 'feature/AF/continue-button'
Merge branch 'master' of https://github.com/ucberkeley/moocchat into features/chat