Comment out setHostname for cdh manager and data-nodes (WIP)
Use internal DNS

- as first step, using GeoScaling.com
- as entity comes up/down, add to dns
Set LOCAL_HOSTNAME with ssh'ing `hostname`, and use for DNS
Set SElinux to permissive

- saw error when running cloudera-manager-installer.bin:
    NOTICE: SELinux is enabled. It must be disabled to install and use this product.
- TODO: should really just configure SELinux policy correctly, rather
  that making it permissive!
expose vcloud config (mem/cpu/clusterSize) in catalog
Change SElinux to disabled, rather than permissive

- and reboot rather than "setenforce 0", as that's what Andrea had
  previously tested.
Fix MEMORY_SIZE_MB to be correct type

- Is a Long rather than Double
Merge pull request #6 from aledsage/update/brooklyn-060-SNAPSHOT-dns

For deploying CDH into vcloud