Style notifications if the window manager supports it.
Style album message
More translator friendly string formatting

* Add escaping of supplied strings since they may interfere with the
  xml-based markup.
Fix typo.
Automatic merge of Transifex translations
Automatic merge of Transifex translations
* Fixed typo in error message.
Automatic merge of Transifex translations
Merge pull request #166 from xhochy/feature/fdonotify-use-capabilities

Style notifications if the window manager supports it.
* Some FdoNotifyPlugin cleanups.
Merge branch 'master', remote-tracking branch 'tomaOrigin/master'