chore(package): update ember-cli-autoprefixer to version 0.6.0
chore(package): update ember-cli-autoprefixer to version 0.6.0

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dartajax/frontend,stopfstedt/frontend,djvoa12/frontend,ilios/frontend,jrjohnson/frontend,ilios/frontend,thecoolestguy/frontend,dartajax/frontend,gboushey/frontend,stopfstedt/frontend,thecoolestguy/frontend,gboushey/frontend,gabycampagna/frontend,djvoa12/frontend,gabycampagna/frontend,jrjohnson/frontend