Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  1d667263f07046747f1b463a02c6c0092f1aeb56

Corrected page link and problems if the link is to a remote server

Additionally some other problems were corrected.

Bug: 56787
Change-Id: I01e7dc9938b52a8f809740e582d61b1e0131916d