add new user form
Update media css
Update Trip file name to lowercase
Commented out link to media.css because of error loading.
Removed login for and made it a partial
change errors to error in flash notice
Wrapped code in content div for css purposes.
Added sessions resources.
Create a sessions controller.
Made sessions folder with login form partial.
Add flash notice for error and log in for for sessions.
Removed duplicate login form
Css styling for navbar title.
Delete index action.
Create destroy action.
Create trip form.
Changed homepage to render different things when logged in or not.
Made title a link to homepage.
made sessions work for logging out
minor cleanup routes