HPCC-11292 Fix CentOS6 Build

    - Remove unused install script references

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
Merge pull request #1 from garonsky/HPCC-11292_centos6_build_fix_2

HPCC-11292 Fix CentOS6 Build

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
HPCC-11329 Update minimum required platform version

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
Merge pull request #2 from garonsky/update_version

HPCC-11329 Update minimum required platform version
Split off 5.0.0

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-11338 Use control:alive for Roxie check

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
Merge pull request #3 from garonsky/HPCC-11338_use_control_alive

HPCC-11338 Use control:alive for Roxie check

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>