Hard code freeze requests for gnome-boxes

[Alexander Larsson <alexl redhat com>]

There are a few things we'd like to fix in boxes:
https://bugzilla.gnome.org/show_bug.cgi?id=684561
- make the spinner toolbar button expand to the right size
https://bugzilla.gnome.org/show_bug.cgi?id=679101
- Make the animation delay slightly lower
https://bugzilla.gnome.org/show_bug.cgi?id=683042
- Make password authentication work again, and fix a 
  double-connect on activation race.