tutorial section 7.1.1 - added debug output to dev env site
tutorial section 7.1.2 - added minimal user profile page
tutorial section 7.1.3 - styled minimal user profile page, added test case with factory girl
tutorial section 7.2.2 - finished signup form and signup test case
tutorial section 7.3.2 - covered invalid signup values test case with changes in UsersController
tutorial section 7.3 - finished error message output + styling
section 7.4.1 - added redirect after successful user create
proper tdd: exercise 7.6 (writing a test case) before section 7.3.3

test case for section 7.4.1
test case for section 7.4.1
section 7.4.3 - merged test cases and fixed them with this weird describe-before-structure