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
Merge pull request #69 from DBrodsky90/david

Fixed so you can search for images without being logged in
Made it so you can add more than one image to your selected board if you are logged in
Merge pull request #70 from DBrodsky90/david

Made it so you can add more than one image to your selected board if you...
reworking the navbar styles