Code to determine HBase version, renaming of scripts

Now using hbase shell to determine HBase version. trafodion_mods will
run the correct subscripts depending on if HBase is 0.98 or 0.94.

Renamed ambari_uninstall script to hortonworks_uninstall to clear up
some confusion and to make deleting stray ambari processes easier.

Deleting more stray rpm's in traf_cloudera_uninstall.

Change-Id: I1cce1cfdfd652ab56e9e292d92f2cbc0488a66bc