Enable running regressions in installed Trafodion environment

Cleaning HBase data also requires cleaning hbase data in zookeepoer.
(In configurations where hbase is not start/stopping ZK.)

DCS checks consolidated. Installer configures it to run only one DcsServer,
but multiple mxosrvr's.

Changes in regress scripts to run as same user as the running instance --
trafodion or jenkins. Also place rundir in location outside of trafodion tree.

Archive HBase logs to test results location.
Archive Trafodion install and start-up into separate log instead of console.

Change cmgr (cluster set-up) to not do initialization after first successful
run. Puppet should not start services while test jobs may be trying to
restart cluster as part of trafodion install.

Change-Id: I2396d0723b3732590fc15227131dee5f8600acea