Added task to update the i18n.csv
Add site-wide message linking to v3.1 and fix broken links
Merge pull request #5084 from pjackson28/addv31links

Add site-wide message linking to v3.1 and fix broken limks
Fixed breadcrumb generation for the docs index file
Merge pull request #5089 from pjackson28/fixdocsbreadcrumb

Fixed breadcrumb generation for the docs index file
Updated contributing.md with new v4.0 information
Merge pull request #5090 from pjackson28/updatecontributing

Updated contributing.md with new v4.0 information
Merge pull request #5088 from LaurentGoderre/grunt-i18n

Added task to update the i18n.csv
Merge pull request #5087 from nschonni/v4-scss-lint

Add SCSS Lint to Travis build
Tabs: Remove single quote escape for SVG fallback

Since we now wrap it in double quotes, the escaping can be removed
Getting Started: Add missing protocol

The styleguide link was missing the protocol and therefore was turned
into a relative link
Getting Started: Add instructions for proxy setup

Common workarounds for those using a proxy
Merge pull request #5092 from nschonni/v4-grayscale-svg-escape

Tabs: Remove single quote escape for SVG fallback
Build: Move the artifact push back to post test
Merge pull request #5094 from nschonni/v4-further-getting-started

Proxy instructions for getting started guide
Testing: Only run English scaffolds

The testing doesn't cover i18n tasks currently, so it it just doubling
the test run.
Extracted the test file globbing to reduce duplication.
Merge pull request #5095 from nschonni/v4-en-only-mocha

Testing: Only run English scaffolds
Fixed broken links to the v3.1 demos index page
Updated roadmap with specific maintenance release dates
Merge pull request #5108 from LaurentGoderre/fix-broken-links

Fixed broken links to the v3.1 demos index page