Made some progress with image uploads, about 20%

Got to the point where the upload form will take the file, send it to
tmp, rename it and keep it in an uploads folder. Next steps are linking
the file with the user, adding the url to their schema and making the
image their 'profile' photo. Also need to do type checking before
allowing uploads, and then need to make the file upload a jQuery / AJAX
/ socket.io production before sending through to Express. 20% seems
about right. Getting there...