Course Reruns UI

Studio: adding course re-run-centric static template rendering

* initial HTML for dashboard states
* initial HTML for new course re-run view/form
* initial HTML placeholder for outline alert UI

Conflicts:
	cms/templates/index.html

Studio: adding styling for course re-run-centric views

* adding new view/page mast-wizard type
* refactoring create course/element form styling
* adding course re-run view specific styling
* adding courses processing styling (w/ alerts and status)

Course rerun server-side updates: support display_name and DuplicateCourseError.

Studio: further design revisions and tweaks from feedback

* removing new window attribute from re-run control
* removing links from processing courses
* revising look/feel of dismiss action on dashboard + alert
* correcting font-weight of dashboard processing title
* adding extra space to course rerun action on dashboard
* re-wording secondary cancel action on rerun view

Conflicts:
	cms/templates/index.html

Added interation on unsucceeded courses in dashboard

Studio: removing 'rel=external' property from course re-run actions

Studio: removing hover styles for processing courses

Fixed value bug in split and set course listing to display run

moved task.py for rerun

common/lib/xmodule/xmodule/modulestore/split_mongo/split.py

@@ -1794,7 +1794,7 @@ class SplitMongoModuleStore(ModuleStoreWriteBase):
         xblock_class = self.mixologist.mix(xblock_class)
 
         for field_name, value in fields.iteritems():
-            if value:
+            if value is not None:
                 if isinstance(xblock_class.fields[field_name], Reference):
                     fields[field_name] = value.block_id
                 elif isinstance(xblock_class.fields[field_name], ReferenceList):