ACCUMULO-4622 Add a `accumulo-cluster restart` command
ACCUMULO-4622 Add a `accumulo-cluster restart` command

Closes apache/accumulo#248

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