Fixes for trafodion installer test environment

Tested via node_test on 4.4 and 5.1 environments managed by
cloudera manager.

- Pass workspace location on command line, since environment not
  preserved when switching users.
- hdfs header file needed for trafodion build, so we need to install
  extra packages.
- kill rogue has to look for instance running under jenkins or trafodion
  user ID.
- some initial HDFS directory setup was missing in cmgr.sh

node_test gets as far as starting trafodion, but further progress needs
fix in installer.

Change-Id: I6fabce422ed876fc8e7796d12ea8dac72d78a16a