Add --manage-cgroups ignore (commit 42e5c04)
* <code>full</code>. Always restore all cgroups and their properties.
* <code>strict</code>. Restore all cgroups and their properties from the scratch, requiring them to not present in the system.
By default, <code>soft</code> is assigned if <code>--manage-cgroups</code> option passed without an argument (i.e. the same as <code>--manage-cgroups=soft</code>).
[[Category:Under the hood]]