Make survey builder sidebar fixed postion. Update assets
Add Ruby Racer to Gemfile. Ignore database.yml
Add date icon to answer preview box
Highlight current preview question
Update survey list in user show
Move validation for blank input option to client side
Move survey builder markup for edit and view templates into table
Select all input text on click
Merge branch 'redesign_answer'

Conflicts:
	app/assets/stylesheets/survey_builder.css.scss
	app/views/surveys/_survey_builder.html.erb