Merge remote-tracking branch 'origin/develop'
Merge remote-tracking branch 'origin/develop'
Merge remote-tracking branch 'origin/develop'
Merge branch 'develop'
almost completed
add nfs client recipe.

add local directory into ignore list.
two utility method added:

  resolve_ip_to(server)

     resolve the ip address to reach for the server.

  has_ip?(ip)

     return true if the node has ip.
nfs server implementation added.
quick pxe install for precise
Merge pull request #9 from speedland/feature/pxeserver

Feature/pxeserver