Moves fonts reference to server's assets/fonts.
Renames public/javascript -> public/js to follow conventions. Moves angularJs and firebase SDKs' reference to server's assets/js to avoid depending on those services.
Moves jquery script reference to be able to used it as in fbAuth script succes event.
Renames 'public/stylesheets' -> 'public/css' to match conventions.
Deletes repeated faviicon reference, and fix its href url.