Change BlockStructure logging from DEBUG to INFO

Load jquery-ui by default in LMS suite.

Use Karma as test runner with Jasmine 2.4.

Call analytics.track on receipt page

TNL-4102

AC-383 language menu events only when menu opens

Clytwynec/ac 367

wait needed for notes pages.

Fix flaky videoplayer bokchoy test.

Updating cookies settings

SUST-40 – Eliminate unwanted problem_get ajax requests flooding the LMS.

ECOM-4101

An event is being fired on actions (Check/Save/Reset) to keep track of updated problems. On coming back to already visited sequence position, while putting sequence contents in container, only those problems that are found outdated, are going to be updated from earlier tracked problems.

[SUST-40]

The page visit requires an ajax request to get the notes. Without
waiting for that to complete, additional navigation results in a
socket error.

Example failure from the stub service:
```python
Traceback (most recent call last):
  File "/usr/lib/python2.7/SocketServer.py", line 295, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 321, in process_request
    self.finish_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 334, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/lib/python2.7/SocketServer.py", line 657, in __init__
    self.finish()
  File "/usr/lib/python2.7/SocketServer.py", line 716, in finish
    self.wfile.close()
  File "/usr/lib/python2.7/socket.py", line 283, in close
    self.flush()
  File "/usr/lib/python2.7/socket.py", line 307, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 32] Broken pipe
```

Use type_in_codemirror instead of ActionChain to set content.

Retrofit programs data mixin with factories

This should make it easier to test programs-related features. Preface to ECOM-3200.