Merge pull request #67 from DBrodsky90/david

bingwrapper fix
created flashes for: logout and login message, changed the root route to now be session#new. created a form template, applied it to the login form, started working on overall styling
almost done with navbar styling, minus the event handlers. made the navbar into a partial form
Merge pull request #68 from DBrodsky90/lauren

created flashes for: logout and login message, changed the root route to now be session#new. created a form template, applied it to the login form, started working on overall styling
Fixed so you can search for images without being logged in