Enable container-based infrastructure for Travis builds.
Enable container-based infrastructure for Travis builds.

hawkular/hawkular-btm,jpkrohling/hawkular-btm,jpkrohling/hawkular-btm,objectiser/hawkular-btm,objectiser/hawkular-btm,objectiser/hawkular-apm,objectiser/hawkular-apm,hawkular/hawkular-apm,hawkular/hawkular-btm,hawkular/hawkular-apm,jpkrohling/hawkular-btm,hawkular/hawkular-apm,objectiser/hawkular-apm,objectiser/hawkular-apm,hawkular/hawkular-apm,jpkrohling/hawkular-apm,hawkular/hawkular-apm,jpkrohling/hawkular-btm,jpkrohling/hawkular-btm,jpkrohling/hawkular-apm,hawkular/hawkular-btm,objectiser/hawkular-btm,jpkrohling/hawkular-apm,jpkrohling/hawkular-apm,jpkrohling/hawkular-apm,hawkular/hawkular-btm,objectiser/hawkular-btm,hawkular/hawkular-btm,objectiser/hawkular-btm,objectiser/hawkular-apm