Merge remote-tracking branch 'remotes/kraxel/tags/pull-ui-20160610-1' into staging

ui: misc bug fixes.

# gpg: Signature made Fri 10 Jun 2016 10:56:06 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/pull-ui-20160610-1:
  console: ignore ui_info updates which don't actually update something
  ui/console-gl: Add support for big endian display surfaces
  gtk: fix vte version check
  ui: fix regression in printing VNC host/port on startup
  vnc: drop unused depth arg for set_pixel_format

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>