wired up 'sign on' button, relates to #38
refactored sign on js for updating question count, consistent styling for signature count on list and detail pages
added helpers for signature percentage width and question_signed by user, consistent signed on labeling
merge
converted sign_on_user to coffeescript
renamed user.question_signed to user.question_signed?
added user signed in check for showing 'sign on' button on question list page, request tests passing
added phantomjs requirement to readme for request tests
added request spec for sign on action for signed on user on question list page
added acceptance tests for signing on to questions from question #index and #show views
New achievement Garage Inventor
removed debug line in question view
removed silly git-achievements pages, updated .gitignore
new users sign on to a question when completing the for question#show
added test for new user sign up with question sign on
removed old dev note
Merge pull request #43 from datamade/master

wire up 'sign on' buttons for questions

Most of remaining for #20
Closes #43, #38