Merge pull request #10 from qsymmachus/take_surveys

Add unit tests for Response model
Add controller tests for user create and login
Update controller to sign up user
Add controller to login and logout
Add view form to sign up user
Add html header for user signin and creation with css
Merge pull request #11 from qsymmachus/users

Users controller and views added fully tested
Adds create survey template
Adds add question event handler and #appendQuestionField
Successfully implements event delegation for remove question event handler
Adds complete event handling for remove question
Creates post surveys route with creation fo surveys, questions, and choices objects
Surveys now assigned to signed-in user when created
Survey can now be made public or private at creation
Refactors post /surveys route
Adds survey created page with link to created url
Adds top level CSS styling; design for index.erb
preparing for merge
Merge remote-tracking branch 'remotes/origin/create-survey' into take_surveys
merged css_styling