We needed those files for the push translation
jenkins job as job has been updated to run
without commiting any changes to reo. we no
longer need those files in repo.

translations to transifex. This will help edx-platform
automated jenkins translation job understand when to push
translations to transifex.

LEARNER-1860

FEDX-121

The previous approach for handling NPM assets was
to symlink them into the static directory. This appeared
to cause trouble with the asset pipeline where the files
in question were not installed and then old versions were
picked up instead.

This change instead copies NPM libraries to a new
static directory so that the pipeline can consume them
as with any other file. This new directory is added to
.gitignore so that the files don't get accidentally
checked in.

Sass compilation is no longer dependent on Ruby, so we are
removing its dependencies.

This is a squash of 38 commits ending with
5b080f979d692804452400ac5bed9b17c50b001e

* adding in missing web certs Sass/CSS asset settings
* updating .gitignore

- SOL-465: Initial implementation of certificates web view and signatories (names/titles)

- SOL-718 Close button is working properly

- SOL-801 Backbone Signatories Modeling

- SOL-803 Underscore template: Editor (Add)

- SOL-802 Signatories: Underscore template - Details

- SOL-804 Signatories: Underscore template: Editor (Edit)

- Add signatory delete Django view

- SOL-805 Signatory editor (Delete)

- Add Coffeescript router

- SOL-716 Jasmine Tests

- Added missing minified JS library

- client side validation of signatory fields

- SOL-390 signatories names

- Remove obsolete extends Sass files

- input maxlength limiting for signatory information

- SOL-389: Course title override

- SOL-466: Add capability to upload digitized signatures in Studio

- ziafazal: fixed css for upload signature image

- ziafazal: completed deletion of signature images

- UX-1741: Add initial static rendering/styling for Open edX web certs
  * creating new global static dir
  * adding s...

Serve branded footer JSON/HTML/CSS/JS from an API endpoint
in the branding app.  Refactor OpenEdX and EdX.org footer templates
to use the Python version of the API, ensuring that the API
values are consistent with the footer included in main.html.

Detailed changes:

* Added footer API end-point to the branding app.
* Footer API allows the language to be set with querystring parameters.
* Footer API allows showing/hiding of the OpenEdX logo using querystring parameters.
* Deprecate ENABLE_FOOTER_V3 in favor of the branding API configuration flag.
* Move no referrer script into main.html from the edx footer template.
* Rename rwd_header_footer.js to rwd_header.js
* Cache API responses.

Authors:
Awais Qureshi, Aamir Khan, Will Daly

ECOM-1547 created new template and Sass file for new footer. Wrapped it in a feature flag and updated previously named footer-edx-new.html to footer-edx-v2.html to better track/name updates to the footer going forward.
ECOM-1547 removed data-updated attributes from body
ECOM-1548 added JS file that inits analytics event listener and makes ajax call to API to get footer and HTML and add it to the DOM
ECOM-1547 code review cleanup
ECOM-1547 rebase and Sass appraoch update after @talbs the IE9 killer slayed the mighty beast.
ECOM-1547 updated file names and added comments in light of @talbs review of PR
ECOM-1547 update to social media link styles and nav link order
ECOM-1547 updated SOCIAL_MEDIA_FOOTER_NAMES if ENABLE_FOOTER_V3 is true
ECOM-1547 added translations to screenreader text
ECOM-1547 fixed test and renamed files in line with @talbs's pending PR
ECOM-1547 cleaned up file naming

This file should not have been committed by #6447. It is causing issues for Mac OS X users, preventing checkouts and rebases.