Experimentally merge the stable (KDE/4.8) branch into master with `git merge
--log --edit -s recursive -Xours'. Some translation commits ended up being
merged, but tsdgeos said it's OK as they will be automatically reverted by
scripty.

* KDE/4.8:
  clizip: Define PasswordPromptPattern.
  cliinterface: A password prompt can also be shown when extracting.
  queries: Consider an empty password as a request cancellation.
  cliinterface: Correctly set QIODevice::Text.
  cli7zip: Completely remove RootNodeSwitch.
  SVN_SILENT made messages (.desktop file)
  SVN_SILENT made messages (.desktop file)
  SVN_SILENT made messages (.desktop file)
  fix linking order which fixes a linker issue on windows
  SVN_SILENT made messages (.desktop file)
  SVN_SILENT made messages (.desktop file)
  Add missing add_definition() calls.
  SVN_SILENT made messages (.desktop file)
  Save and restore the size of the internal viewer window.
  SVN_SILENT made messages (.desktop file)
  SVN_SILENT made messages (.desktop file)
  SVN_SILENT made messages (.desktop file)