Localisation updates from https://translatewiki.net.

Change-Id: I70ae0044e0a7c858591e1aa97fbe8287a54cd30c
Call Linker::formatSize statically

The bumps the required MediaWiki version to 1.18.

Change-Id: I1914b369049b96354187b16ef7def776337c9b3f
Localisation updates from https://translatewiki.net.

Change-Id: Iebf0806ac98c270fa9b8f1b8329aaeee63a3a1d6
Localisation updates from https://translatewiki.net.

Change-Id: Idee79f41ca027b7efaf199b97512e34e7797021a
Merge "Call Linker::formatSize statically"
Localisation updates from https://translatewiki.net.

Change-Id: I528df7b267f0950ff1424c3228f538807f69b96a
Localisation updates from https://translatewiki.net.

Change-Id: I5da974d3c110d446e17c38978f619ddd1452a3c8
Migrate to JSON i18n

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

Change-Id: I478eeea10ee63fa1916c353dce7ce7206e4e28a2
Localisation updates from https://translatewiki.net.

Change-Id: Ic29885878ba1e3830e6cf6c0419ba2c81a3596e0