fixes signup and login page with google button
removes feedback support from login pages (it is something specific from catarse)
removes empty file
adds pluribusfund logo
changes the home banner
changes the purple to dark blue
fixes structure-initial to work with new version of postgresql on linux
adds memcachier and dalli (because saving cache on disk is ugly and does not work with Heroku)
fix broken specs that brokes after putting google auth on login page