JS: Update jQuery model

Author: asgerf

javascript/ql/lib/semmle/javascript/frameworks/jQuery.qll

@@ -60,11 +60,7 @@ private predicate neverReturnsJQuery(string name) {
     decl.getBaseName() = "jQuery" and
     decl.getName() = name
   |
-    not decl.getDocumentation()
-        .getATagByTitle("return")
-        .getType()
-        .getAnUnderlyingType()
-        .hasQualifiedName("jQuery")
+    not decl.getDocumentation().getATagByTitle("return").getType().hasUnderlyingType("jQuery")
   )
 }
 
@@ -414,6 +410,8 @@ module JQuery {
         this = DataFlow::moduleImport(["jquery", "zepto", "cash-dom"])
         or
         this.hasUnderlyingType("JQueryStatic")
+        or
+        this.hasUnderlyingType("jquery", "")
       }
     }
   }