Updated mediawiki/extensions
Project: mediawiki/extensions/SignWritingMediaWikiPlugin  9ed5af3514adfa6f83cfdb857a4a87a026de42e9

Add i18n file

* ExtensionCredits
** Change type to "other" ("interface" does not exist)
** Add path
** Move descrition to the i18n file
* Remove useless ?>

Change-Id: I990de6fa0a5cb4aaa8e58c04a3a7dc255ff86872