Updated models and most of the views for People model. Need to do vendor then tests
update rspec so all tests now pass with single user sign-in
all 'person' features updated to work with the new single login
added vendor sign up form, still need to fix confirmation page for yelp
fixed a bunch more cucumber steps
all test pass for vendor/person user integration
updated to work with postgres and populate now works with new user model
fixed suggested changes by ian and found a bunch of files without carriage returns at the end of them
updated to use vendor_signed_in? and person_signed_in? helper methods instead of user_signed_in and checking for user type
Fix merge conflicts
Merge pull request #137 from tuxedio/f-single-user-account

F single user account