Set testVersion to php 5.6

Author: tijmenbruggeman

phpcs.xml

@@ -1,8 +1,11 @@
 <?xml version="1.0"?>
 <ruleset>
+  <config name="testVersion" value="5.6-"/>
   <config name="installed_paths" value="vendor/wp-coding-standards/wpcs,vendor/phpcsstandards/phpcsutils,vendor/phpcsstandards/phpcsextra" />
 
-  <rule ref="WordPress-Core" />
+  <rule ref="WordPress-Core">
+     <exclude name="Universal.Operators.StrictComparisons" />
+  </rule>
   <rule ref="Generic.Files.LineLength">
     <properties>
       <property name="lineLimit" value="100" />