Working on single-node CentOS support
Merge remote-tracking branch 'origin/feature/centos_reworks' into feature/centos_reworks

Conflicts:
	templates/server_setup_scripts/seqware/centos_6.2_gridengine_script.sh
	templates/server_setup_scripts/seqware/centos_6.2_seqware_master_install_script.sh