Added rel="external" icon
Making sure rel="external" icon doesn't bleed into share widget
Icon sprite updated
Make sure external icon doesn't appear in header, footer or left menu
Formatting changes to SCSS files re: external icon
spacing issues fixed in scss file
EditorConfig: Add common settings for IDEs

http://EditorConfig.org
Minor fixes the HTML in grid-base-eng.html.
Merge pull request #1747 from pjackson28/v3.0

Minor fixes the HTML in grid-base-eng.html
Merge pull request #1745 from nschonni/add-editorconfig

EditorConfig: Add common settings for IDEs
formvalid: fixes working example margins
Merge pull request #1752 from patheard/formvalid-working-example

formvalid: fixes working example margins
Merge pull request #1743 from eehret/maven-v3.0

Maven build files
Merge branch 'v3.0' of https://github.com/cfarquharson/wet-boew into cfarquharson-v3.0
Limited scope of external icon to wb-main (instead of applying everywhere and overriding for certain sections). Fixed support for grids button (all four sizes). Fixed external icon working example.
Added aria-describedby support for images to Lightbox.
Added aria-describedby examples for images to Lightbox.
Merge pull request #1756 from pjackson28/v3.0

Added aria-describedby support and working examples for images to Lightbox
Build: Update JSHint task to use JSHint v1.1.0

Updated to latest Sass gem since changing the properties file will
already trigger a rebuild of the deps
Demos: Update details to remove inline styles

Picked from @cfarquharson update in gh-1233