Localisation updates from https://translatewiki.net.

Change-Id: Ia3564ba712226a31e0ddcfed3fa084fdfa28fb16
Merge branch 'master' of ssh://wmfgerrit/mediawiki/extensions/SemanticMediaWiki
Update Validator version
Delete .coveralls.yml
Tests are part of the code we need to maintain

Quality matters as well in tests
Update INSTALL.md
Merge pull request #239 from SemanticMediaWiki/validator

Update Validator version
Migrate to JSON i18n

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

Change-Id: Ifc1744e5e93fa9621e7e5f3b60ce58857e6ee987
Merge pull request #248 from SemanticMediaWiki/review/siebrand/json-i18n

Migrate to JSON i18n
Update .travis.yml
Localisation updates from https://translatewiki.net.

Change-Id: Idc8c7405f50071f0867628328fceb9b97a718596
Localisation updates from https://translatewiki.net.

Change-Id: I003fabe6876c1580c97edae724447a2364da7d24
Delete SMW_Postgres_Schema.sql

Is not used anywhere in SMW and besides it uses old table definitions such as
"smw_relations".
Localisation updates from https://translatewiki.net.

Change-Id: Ib47862e2fe014a286dd23c0edf322bce43f96412
Update RELEASE-NOTES.md
Merge pull request #252 from SemanticMediaWiki/delete

Delete SMW_Postgres_Schema.sql
Merge pull request #243 from s7eph4n/master

Introduce --query parameter for SMW_refreshData.php
SMW\Store\Maintenance\DataRebuilder
Add --query parameter

Add the #243 feature
Manipulating $GLOBALS['smwgQMaxLimit']