Paver: Check for the npm registry and set it if necessary.

Fix: inadvertent scroll when loading the instructor's extensions tab

Linkify browser names

If paver is being run by a user that is not the same as the user
that installed npm on the guest machine, then paver install_prereqs fails
with the following error:

  ---> pavelib.prereqs.install_node_prereqs
  npm config set registry http://registry.npmjs.org/
  npm ERR! Error: EPERM, chown '/home/jenkins/.npmrc'
  npm ERR!  { [Error: EPERM, chown '/home/jenkins/.npmrc'] errno: 50, code: 'EPERM', path: '/home/jenkins/.npmrc' }
  npm ERR!
  npm ERR! Please try running this command again as root/Administrator.

  npm ERR! System Linux 3.2.0-23-generic
  npm ERR! command "/usr/bin/node" "/usr/bin/npm" "config" "set" "registry" "http://registry.npmjs.org/"
  npm ERR! cwd /home/jenkins/shallow-clone
  npm ERR! node -v v0.10.30
  npm ERR! npm -v 1.4.21
  npm ERR! path /home/jenkins/.npmrc
  npm ERR! code EPERM
  npm ERR! errno 50
  npm ERR! stack Error: EPERM, chown '/home/jenkins/.npmrc'
  npm ERR!
  npm ERR! Additional logging details can be found in:
  npm ERR!     /home/jenkins/shallow-clone/npm-debug.log
  npm ERR! not ok code 0

  Captured Task Output:
  ---------------------

  ---> pavelib.prereqs.install_prereqs
  ---> pavelib.prereqs.install_ruby_prereqs
  ---> pavelib.prereqs.install_node_prereqs
  npm config set registry http://registry.npmjs.org/

  Build failed running pavelib.prereqs.install_prereqs: Subprocess return code: 50

This change is a workaround. It will first see if the value is set. In the case
that is it not set, it will attempt to set it. (It will then fail; however,
re-running the task will subsequently be successful.)

Fixed: Can set earlier due date as an individual due date extension and related bugs

CyberSource API Update

Added shared browser topic

Studio: FIX - Outline Edit Actions Alignment

Clytwynec/jenkins how to doc

View course start date from course outline

Clean up shopping cart processor API.
Fix UUID JSON serialization bug in CyberSource2 implementation.
Update test suite to use new CyberSource2 implementation.
Fix i18n messages in CyberSource2
Enable CyberSource2 implementation by default.

Fixed 500 error on views with incomplete course id in url.

pep8 improvements on bok-choy tests.

LMS-11217

Truncated markup can be displayed in forums user profile view

FOR-581

Bok-Choy CMS Video Editor Tests

(The div with id "view-extensions" conflicts with the tab JS which sets location.hash to "view-x" in order to track the current tab)

This confirms the data api upgrade

To include in all guides

Fix messaging for professional ed under auto-registration

Keeps in sync with edx-analytics-dashboard

Cleaning up a few quality violations

Added note to doc team to update in both repos