Merge pull request #9 from fiddler-crabs-2014/chore/html

Chore/html
Update index.erb form action to /create_user. Add logout function in user controller
Merge pull request #10 from tihuan/master

Update index.erb form action to /create_user. Add logout function in use...
fixed ajax login
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Merge branch 'master' of https://github.com/fiddler-crabs-2014/Mega-Survey
Merge pull request #11 from justinphelps/master

fixed ajax auth
logout working in ajax
Merge pull request #12 from justinphelps/master

logout working in ajax
Merge pull request #13 from fiddler-crabs-2014/chore/html

start working on calculatting results from survey
Change session[:user_id] to store only user.id instead of whole user object. Fix '/save_answers/:id' redirect
Merge pull request #14 from tihuan/master

Change session[:user_id] to store only user.id instead of whole user obj...
CHANGE answers_table_answer_to_integer
Merge pull request #15 from tihuan/master

CHANGE answers_table_answer_to_integer
Add helper.rb to calc average result for each question
Merge pull request #16 from tihuan/master

Add helper.rb to calc average result for each question
Add js for add questions dynamically
Merge pull request #17 from tihuan/master

Add js for add questions dynamically
Add remove question function
Merge pull request #18 from tihuan/master

Add remove question function
Add more survey info