AUI-1358 - Make aui-progressbar accessible
AUI-1358 - use roleName
AUI-1358 - we dont need to set the label for this
AUI-1358 - update demo
AUI-1358 - Source formatting
AUI-1358 Fixing ProgressBar unit test
Merge pull request #682 from mairatma/pr-7

AUI-1358 Make aui-progressbar accessible