* Merge from debian testing, remaining changes:
  * build without "-Wl,--as-needed" to avoid crash on theme switching
  * debian/patches/01_ubuntu_theme.patch:
    - add ubuntu theme
  * debian/patches/02_make_ubuntu_theme_default.patch:
    - default to the ubuntu theme
  * debian/patches/09_change_themes_crash_rev1.patch:
    - fix crash on theme switching
* Dropped, now in debian:
  * debian/patches/08_hide_properties_desktop.patch