Feature/ssl login

- [ ] Ready to merge - closing #1059 

Tasks 
- [x] Redirect http => https && vice versa based on url.ssl config
- [x] Create login & register page's
- [x] UserHandler

This needs nginx to run, please see docs for info on nginx config file.

start jsbin with `JSBIN_PORT=3000 JSBIN_PROXY=1 nodemon`