Several artifacts in the jbosstools-browsersim repository didn't get their version bumped on master branch, so master is producing artifacts with lower versions than last stable release.
See http://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jbosstools-browsersim_master/102/

Please update versions of artifacts so they are bigger than the other current active branches (in general, you need to move from x.y.z to x.y+1.0)