Update polish.xml

Author: pico88

contrib/polish.xml

@@ -14,7 +14,7 @@
 				<homepage><![CDATA[http://pico88.github.com/phpBB-Reputation-System/ ]]></homepage>
 			</author>
 		</author-group>
-		<mod-version>0.6.3</mod-version>
+		<mod-version>0.7.0</mod-version>
 		<installation>
 			<level>easy</level>
 			<time>60</time>