fixed typo in user-spec file and configuredrspec to show docs when tests are run
added aliases for sessions routes
added best answer form, empty best answer method and route
added best answer ajax
added best answer partial for ajax response
added best_answer controller method and changed best_question association
added conditionals to views for best_answer
Merge pull request #14 from zacholauson/best_answer

Added ability to select best answer for user's own questions