Update version for development 1.0.3
If `configuration` is provided, map into resource
Always provision server base
Disable of adding proxy settings for apt

At this moment we have two tools which do same thing but different ways.
There is setup proxy address for apt cache. The first one is debootstrap
which adding proxy ip addresses to sources.list and the second one is
this cookbook which setup proxy address in sources.list.d folder.
Now we remove this part from recipe for correct work of apt.
Merge pull request #5 from alff/disable_apt_proxy

Disable apt proxy
Actually, rebuilding base means we can assume latest on lxc, drop proxy bits completely
Remove unused proxy line compose
Merge pull request #6 from alff/fix_apt_proxy

Fix apt proxy
Update mode and group for priv key. Clean up serialized resource unpacking
Move key mode update location to ensure it has been created
Remove key group update
Add some extra paths and detect zero executable in case it's moved
Update version for release v1.0.4