[#88,refactor/state,api-change][m]: FlotGraph now uses state plus DataExplorer takes care of parsing state from Hash.

* First test for FlotGraph view (#45)
* Move convenience functions for testing present of elements to test/base.js from view-grid.test.js

test/view.test.js

@@ -36,7 +36,10 @@ test('initialize state', function () {
   var explorer = new recline.View.DataExplorer({
     model: dataset,
     state: {
-      readOnly: true
+      readOnly: true,
+      'view-grid': {
+        hiddenFields: ['x']
+      }
     }
   });
   var state = explorer.getState();