Bumped django version

We weren't passing in the right profile object to <Jumbotron>, so it was
relying on `SETTINGS.preferred_name` instead of the updated profile
object (`SETTINGS` is only updated on a full page refresh).

* Removed apostrophe from MicroMaster's

* Use MIT for alt text

* Add width and height to images, use correct size image, use static

* Remove quote

* Add apostrophe for Master's degree, remove all for Micromasters

Added custom 404 error page

Updated documentation to reflect edX changes

Upgraded to wagtail 1.5.2

Swapped courses and faq in program page

This adds a couple of functions to sort work history entries in resume
order, for display on `/users` and `/profile/professional`.

This changes the behavior of the switches that we display on the
education and work history profile steps. Now it looks like:

- if the user has not entered anything she can freely toggle the switch
- if there is an entry saved, clicking the switch will display a popup
- confirming the popup will delete all entries and toggle the switch to
  'off'.
- cancelling the popup will close the dialog, leave the entries and
  current switch position intact.

On the work history step this applies to all work history entries, on
the education step we do it level-by-level, so toggling and confirming
for a particular level will delete only the entries for that level.

Added possibility to link external program pages

Added custom 500 page

I added flow and proper `props` validation to a number of files - our
typechecking should be a lot more useful now, although there are still
places we don't have it turned on.

This just makes the autocomplete for field of study a bit wider, and
adjusts the display of a couple of things on `EducationDialog`.

… privacy mode is set tp private

…er_api_#483

Raised 404 from users API for users with privacy setting set to "private"

This changes the privacy tab validation callback on only validation
profile fields, and not check UI state. This fixes a bug where default
values for the UI state could prevent the user from being able to save a
profile on the privacy tab.

Updated edx-api-client requirement

This comprises mainly some changes to `EducationForm` and
`EducationDisplay`, but also some refactoring and some new tests to
catch regressions on `EmploymentForm`: a bug relating to edit indices
was found and fixed here.

* Updated validation text

* Lint

Added settings page and tests.

Changed the label of settings page button.

… mixed

This removes routing from the initial profile flow, so that instead of
guiding the user through a series of components which each live at a
different url (`/profile/education` and so on) everything happens at a
single url (`/profile`).

We're now managing the `profileStep` with a redux action. This entails a
pretty big set of changes to `ProfilePage` and `ProfileFormContainer`,
and a smaller set of changes to `SettingsPage` and some other files.

This also changes `validateProfileComplete`, since after determining the
profile is incomplete we now want to dispatch a particular action and
redirect to `/profile`, instead of redirecting to
`/profile/professional`.

`ProfileProgressControls` now accepts two callbacks (or `void`) to
attach to `onClick` on it's buttons, instead of URLs to push onto
`this.context.router`.

Various other changes are necessary to deal with breaking tests and so
on.

Added user page link to dropdown

…ted text

Changed field of study select to match anywhere in string w/ highlighted text

FAQ collapsed by default

Added deadline for upgrade to verified

Removed logic for "upgrade" from the front end code

Modified FAQ field to have rich text