Fix #57 Plugins form passive detection no longer loaded when enumerating only vulnerable plugins

lib/wpscan/wp_detector.rb

@@ -23,8 +23,10 @@ class WpDetector
 
     result = items
     if items == nil or items.length == 0
+      unless options[:only_vulnerable_ones]
         result = passive_detection(options[:base_url], options[:type], options[:wp_content_dir])
       end
+    end
 
     enum_results = WpEnumerator.enumerate(options)
     enum_results.each do |enum_result|