Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceExtensions  b1bbf30cc6e1e607acb868bb028fd31afc79b16f

[WIP] Refactoring of some parts of ExtendedSearch

Updated all xml update messages to the latest state.
Rewrite logging
Fixed a couple of bugs in query building especially with facetting
Improved schema fields and fixed some stopword lists
More like this just searches in text field
Removed and improved code
Some minor fixes
Fixed case insensitive method name
Rewrite of file indexing

Change-Id: Ief0302cb18fe22b72799f38bd0576127d541d48d