Introduced unspecified vc doc type and added 'ne' matchop to dates

Change-Id: I6f2cbfd0671ea896d10b65b4162dd5f130fe5b3b
diff --git a/dev/demo/vcdemo.js b/dev/demo/vcdemo.js
index dfd6988..2dc5767 100644
--- a/dev/demo/vcdemo.js
+++ b/dev/demo/vcdemo.js
@@ -113,7 +113,7 @@
       ['title', 'string'],
       ['subTitle', 'string'],
       ['pubDate', 'date'],
-      ['author', 'string']
+      ['author', 'text']
     ]).fromJson(json);
 
     document.getElementById('vc').appendChild(vc.element());