Fix $wgMatomo* and $wgPiwik* parameters

$wgMatomo* were mispelled (as $wgMamoto*).

The code, as written, never reached $wgPiwik* because $wgMatomo*
had precedence and are defined in extension.json, hence they had
always de facto precedence.

Issue: #25

Matomo.hooks.php

@@ -32,10 +32,10 @@ public static function MatomoSetup ($skin, &$text = '')
 	 */
 	public static function getParameter( $name ) {
 		$config = \MediaWiki\MediaWikiServices::getInstance()->getMainConfig();
-		if ( $config->has( "Mamoto$name" ) ) {
-			return $config->get( "Mamoto$name" );
-		} elseif ( $config->has( "Piwik$name" ) ) {
+		if ( $config->has( "Piwik$name" ) ) {
 			return $config->get( "Piwik$name" );
+		} elseif ( $config->has( "Matomo$name" ) ) {
+			return $config->get( "Matomo$name" );
 		}
 		return null;
 	}

README.md

@@ -1,7 +1,7 @@
 Mamoto extension for MediaWiki
 ==============================
-Version 4.0.0
- - Last update: 15 February 2019
+Version 4.0.1
+ - Last update: 28 February 2019
 
 This the Mamoto (ex-Piwik) integration extension for MediaWiki
 software. The extension is only useful if you've got a MediaWiki