add description field to bluepill loader for Centos 5.x
add description field to bluepill loader for Centos 5.x

Centos 5 requires a description field for chkconfig to determine that
this loader is in a valid format.

RallySoftware-cookbooks/bluepill,karlfreeman/bluepill,RallySoftware-cookbooks/bluepill,VertiPub/bluepill,gswallow/bluepill,gswallow/bluepill,chef-cookbooks/bluepill,chulkilee/bluepill,opscode-cookbooks/bluepill,opscode-cookbooks/bluepill,faizk/bluepill,7bfa689ac3c4be50f8ba6c1ea8c5f316/bluepill,opscode-cookbooks/bluepill,chef-cookbooks/bluepill,faizk/bluepill,RallySoftware-cookbooks/bluepill,hw-cookbooks/bluepill,gswallow/bluepill,cookbooks/hw-bluepill,jtimberman/bluepill-cookbook,chulkilee/bluepill,miketheman/opscode-bluepill,7bfa689ac3c4be50f8ba6c1ea8c5f316/bluepill,cookbooks/oc-bluepill,chef-cookbooks/bluepill,josephholsten/opscode-cookbooks-bluepill,alexclear/bluepill,7bfa689ac3c4be50f8ba6c1ea8c5f316/bluepill,3months/bluepill,VertiPub/bluepill