show total number of voters for a question
update totalVoters in realtime using d3
question exit() clause needs to remain
add loading indicator image and functions
add loading indicator to all pages
Merge pull request #243 from isaacdontjelindell/issue-242-users-voted-per-question

Show number of users who have voted for each question.
Merge pull request #244 from isaacdontjelindell/issue-224-ajax-loader

Add spinning ajax loading indicator
fix issue 245
fix issue 245
redirect to new survey when create survey button is clicked
change server to new digitalocean vps
Merge pull request #249 from isaacdontjelindell/switch-host

Change node server to new host
Update README.md
Merge pull request #248 from isaacdontjelindell/issue-152-redirect

redirect to new survey when create survey button is clicked
Merge pull request #247 from isaacdontjelindell/issue-245-loading-indicator

fix issue 245
Added authenticate endpoint
don't show bars for FR answers; fix bug where FR answers weren't updated
Added canEdit to getSurveyInfo response
forgot to add exit and transition clause
updated Edit Survey page to include take survey and results buttons as well as survey id