Travis 67.4 / Fix MW 1.23 / DatabaseBase::__construct parameter array ... was deprecated 1.22

1) SMW\Test\SQLStore\PropertiesCollectorTest::testConstructor
Use of DatabaseBase::__construct method called without parameter array. was deprecated in MediaWiki
1.22.

Change-Id: Ic4495b6ae95a58ffbcbf45bb524f85bd577facae