[#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/base.js

@@ -14,3 +14,14 @@ var Fixture = {
   }
 };
 
+function assertPresent(selector, el) {
+  var found = el ? $(el).find(selector) : $(selector);
+  ok(found.length > 0);
+}
+
+function assertNotPresent(selector, el) {
+  var found = el ? $(el).find(selector) : $(selector);
+  ok(found.length > 0);
+  equal(found.length, 0);
+}
+