Added user controller and routes
Added link to view user dashboard
Navbar will display correct dashboard link for user and artist
Separated User and Artist dashboard link, since an artist could want to use either
Removed useless User views
Separated User and Artist dashboard link, since an artist could want to use either
Artist show now redirects artists to custom bounty index
Removed filter control for artist looking for work
Artists may now look at their own dashboard to quickly see items they may accept, yet may also view their profiles like users