* New upstream release from the beta channel (FIREFOX_78_0b4_BUILD1)
* Handle ja-JP-mac locale
  - update debian/config/locales.shipped
  - update debian/config/searchplugins.conf
* Drop obsolete patches
  - debian/patches/ppc-drop-register.patch
* Remove obsolete conf-flags
  - debian/config/mozconfig.in
* Update patches
  - debian/patches/partially-revert-google-search-update.patch
  - debian/patches/ubuntu-ua-string-changes.patch
  - debian/patches/support-coinstallable-trunk-build.patch