Updated mediawiki/extensions
Project: mediawiki/extensions/UniversalLanguageSelector  7416740f95aeadc1b11c96127c31825b8e605f47

Introduced $wgULSAnonCanChangeLanguage

This allows us to enable web fonts and input methods for all
users by disabling just the interface language selection.

Updated the documentation of the variables to make it clearer
what each does. Summary:
* Enabling: $wgULSEnable and $wgULSEnableAnon
* Workarounds: $wgULSAnonCanChangeLanguage and $wgULSLanguageDetection

Cleaned up hooks, in particular rewritten getLanguage to separate
the logged in vs. logged out steps for easier understanding.

A followup commit is needed to disable language selection UI for
anon if $wgULSAnonCanChangeLanguage is false.

Change-Id: Ia8d21c394ff5efac0ce94664710c97dc3b74ec18