I18n: Remove broken / unsupported translations.

See http://users.xfce.org/~nick/broken-i18n/ for files and logs.

Use https://www.transifex.com/projects/p/xfce/ to upload fixed versions or request a translation team.
I18n: Update translation es (100%).

282 translated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation id (100%).

282 translated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation zh_CN (96%).

271 translated messages, 11 untranslated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation ug (73%).

207 translated messages, 75 untranslated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Update translation el (68%).

192 translated messages, 90 untranslated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
Improve URL matching (bug #7959, bug #9800).

- Add support for matching IPv6 addresses
- Fix URL parsing (bug #7959 and bug #9800)
- Add some characters for email address parsing
I18n: Update translation en_GB (64%).

183 translated messages, 99 untranslated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).
I18n: Add new translation en_AU (100%).

282 translated messages.

Transifex (https://www.transifex.com/projects/p/xfce/).