do not shadow root password
look in git msg for detail

- forced the interfaces names to be eth0 and not via
  biosname (trusty changes)
- password regeneration routine
- totally disable and override shorewall init scripts
  to be sure that it is runned at end of boot via rc.local

cc @jpcw @samaradona
add bridge utils
less naive network test
disable some sysctls in lxc
conf is now global in nginx state
simplify
colorlog
review the burp conf a little (orchestration)

This was retested from scratch
support for dbsmartbackup/ldap
Merge pull request #83 from makinacorpus/stable

Stable