Updated mediawiki/extensions
Project: mediawiki/extensions/GWToolset  5fa5060f5216da8322ae2ba9aeb14738854feffc

Missing translation

Found a missing translation and while adding it noticed that it could be
used by another method, so i added it there and re-organised the
GWTExceptions in it.

Change-Id: I53828a10f3f43e4041dc90a3659d7adf17b3f968