Started writing Backbone tests

Hacking the Python, because our JS dependency management is borked.

cms/envs/common.py

@@ -221,7 +221,8 @@ PIPELINE_JS = {
         'source_filenames': sorted(
             rooted_glob(COMMON_ROOT / 'static/', 'coffee/src/**/*.js') +
             rooted_glob(PROJECT_ROOT / 'static/', 'coffee/src/**/*.js')
-        ) + ['js/hesitate.js', 'js/base.js'],
+        ) + ['js/hesitate.js', 'js/base.js',
+             'js/models/feedback.js', 'js/views/feedback.js'],
         'output_filename': 'js/cms-application.js',
         'test_order': 0
     },

cms/static/coffee/spec/models/feedback_spec.coffee

+describe "CMS.Models.SystemFeedback", ->
+  m = new CMS.Models.SystemFeedback()
+
+  it "should have an empty message by default", ->
+    expect(m.get("message")).toEqual("")

cms/static/js/models/feedback.js

 CMS.Models.SystemFeedback = Backbone.Model.extend({
     defaults: {
         "type": null,  // "warning", "confirmation", "error", "announcement", "step-required", etc
-        "title": null,
-        "message": null,
+        "title": "",
+        "message": "",
         "shown": true,
         "close": false,  // show a close button?
         "icon": true,  // show an icon?