Merge pull request #35 from robhoes/master

The path to network.conf is now set in the config file (as it should)
Start xenopsd-xenlight at the correct runlevel

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
Install block-xl script

Signed-off-by: Rob Hoes <rob.hoes@citrix.com>