added test for downcasing of email addresses
enhanced email address validation regex to exclude consecutive dots
added debug div for dev env, added :users resources and added show page for users
Added FactoryGirl factory for users and also tests for show action
added gravatar_for to users_helper, and gravatar to show user page
added styling for show user page
added signup form and tests, currently broken
added user registration with form and create on success/error msg on fail
added redirect on successful signup and also flash message to layout
activated force_ssl = true for prod