User Authentication Work

Dashboard Controller Added
- Each user will have a dashboard for actions that they can take -
Posting - reading - moderating etc.
layouts/application
- updated to reflect new user authentication
— if user_signed_in? show email else give sign up or sign in links
routes.rb
- added routes for dashboard
- removed convoluted devise_scope :user do
— not needed now - unless I decide to rename users/sign_in