removed comments from serialized configuration, removed unused include

Author: iherwig

src/wcmf/lib/config/impl/InifileConfiguration.php

@@ -656,7 +656,9 @@ protected function serialize() {
       }
       $this->fileUtil->mkdirRec(dirname($cacheFile));
       if ($fh = @fopen($cacheFile, "w")) {
-        if (@fwrite($fh, serialize(get_object_vars($this)))) {
+        if (@fwrite($fh, serialize(array_filter(get_object_vars($this), function($value, $name) {
+          return $name != 'comments'; // don't store comments
+        }, ARRAY_FILTER_USE_BOTH)))) {
           @fclose($fh);
         }
       }

src/wcmf/lib/model/AbstractQuery.php

@@ -17,7 +17,6 @@
 use wcmf\lib\persistence\PagingInfo;
 use wcmf\lib\persistence\PersistenceAction;
 use wcmf\lib\persistence\PersistenceException;
-use wcmf\lib\persistence\PersistenceMapper;
 
 /**
  * AbstractQuery is the base class for all query classes.