First pass on updating demos for 1.4.
Merge branch 'master' into demos-update
Deprecated ui-hide-label.

Use ui-label-accessible and no field container instead.
Second pass on updating the demos for 1.4.
Merge branch 'master' into demos-update
Third pass on updating the demos for 1.4.
Demos: Combined header and footer page into one toolbar page. Fixes #6449/
Updated the Gruntfile after changing file names in the demos.
Demos: Removed specific version from code snippet so we don't have to update for each release.
Demos: updated panel styling demo. Fixes #6259.
Merge branch 'demos-update'