Update travis to use default ZK for all builds
Update travis to use default ZK for all builds

mjwall/accumulo,lstav/accumulo,mjwall/accumulo,lstav/accumulo,ivakegg/accumulo,milleruntime/accumulo,phrocker/accumulo-1,keith-turner/accumulo,ctubbsii/accumulo,lstav/accumulo,milleruntime/accumulo,keith-turner/accumulo,milleruntime/accumulo,milleruntime/accumulo,ivakegg/accumulo,mjwall/accumulo,apache/accumulo,mjwall/accumulo,apache/accumulo,ctubbsii/accumulo,keith-turner/accumulo,lstav/accumulo,ivakegg/accumulo,ivakegg/accumulo,mjwall/accumulo,mjwall/accumulo,phrocker/accumulo-1,keith-turner/accumulo,apache/accumulo,milleruntime/accumulo,lstav/accumulo,lstav/accumulo,ivakegg/accumulo,phrocker/accumulo-1,milleruntime/accumulo,apache/accumulo,ctubbsii/accumulo,keith-turner/accumulo,apache/accumulo,keith-turner/accumulo,apache/accumulo,phrocker/accumulo-1,phrocker/accumulo-1,ctubbsii/accumulo,ivakegg/accumulo,lstav/accumulo,ivakegg/accumulo,phrocker/accumulo-1,mjwall/accumulo,ctubbsii/accumulo,keith-turner/accumulo,apache/accumulo,milleruntime/accumulo,ctubbsii/accumulo,phrocker/accumulo-1,ctubbsii/accumulo