Make sure dhcp client is dead before we transition things.
Merge pull request #21 from galthaus/pull-req-master-264f05fe81

Kill dhcp client in sledgehammer sooner to increase stability. [1/5]
Make crowbar_join run under screen
Don't call yum update during the install scripts.

We really just wnat a clean cache, and the chef recipes will take care
of that the first time they launch.
Merge pull request #22 from VictorLowther/pull-req-master-20fd6f607a

Further fixes for the network barclamp and the provisioner [2/6]
Merge branch 'master' into release/essex-hack/master
Have control.sh cleanly umount our nfs mounts before rebooting.

This should help ensure that the logs are flushed properly.
Merge pull request #23 from VictorLowther/pull-req-master-54ba60eae8

Make sure sledgehammer syncs and umounts filesystems before shutting down. [2/6]
Merge branch 'master' into release/essex-hack/master
Make sure prereq gems are installed
Install the prereq gems first.
Merge pull request #24 from galthaus/pull-req-master-ef50b9c271

Add default gems to the initial install paths and undo prereq recipe [1/6]
Don't use dns for hostname lookups (for redhat)  Ubuntu may need this change later.
Merge remote-tracking branch 'origin/master'
Merge pull request #25 from galthaus/pull-req-master-5923024cb2

For now, don't rely on DNS for hostname look ups [1/5]
Also update redhat crowbar join.sh
Merge remote-tracking branch 'origin/master'
Merge pull request #26 from galthaus/pull-req-master-0d20a1677a

Update hostname in crowbar join as well [1/5]
echo does not equal cat
Merge remote-tracking branch 'origin/master'