Fix #780 by changing options context in '.find()'

The issue, after upgrading css-select to v1.2.0, was due to an improper
context of options passed to 'CSSselect()'.

lib/api/traversing.js

@@ -29,7 +29,9 @@ exports.find = function(selectorOrHaystack) {
     }, this));
   }
 
-  return this._make(select(selectorOrHaystack, elems, this.options));
+  var options = {__proto__: this.options, context: this.toArray()};
+
+  return this._make(select(selectorOrHaystack, elems, options));
 };
 
 // Get the parent of each element in the current set of matched elements,