Merge branch 'hotfix/2.1.7'
Update README.md

fix #233
switch bootstrapaccessibilityplugin to AS fork
Merge branch 'hotfix/2.1.8' into 2.1.7_fixes

Conflicts:
	bower.json
fix aria-tags in global navigation
ref #225
fix focus effect on tab elements (focus)
fix aria-tags and replace by span for pagination and nav-page-list
ref #225