Fix a little error in the text

Change-Id: Iaa8c3d5b5cd50bceab679827d67252191ce5c085
i18n: remove BOM character

Change-Id: Ie709ddafd60f448f75d36379b306d5d72caa6db7
Migrate to JSON i18n

Procedure per https://www.mediawiki.org/wiki/Manual:GenerateJsonI18n.php
with shim.

Change-Id: Icd9656ff4a3683247592de832a0f7e15642d6d02
Replace deprecated/removed $wgExtensionAliasesFiles

Change-Id: I02e1bb9d19ba43f7157a0f500b435acee2a93a2f
Merge "Replace deprecated/removed $wgExtensionAliasesFiles"
Fix spelling: occurred

Change-Id: I1fbfdb17b2571588dea4fde674a67e7c9658ac46