Fixed long shutdown time due to lxc-stop timeouts
Fixed long shutdown time due to lxc-stop timeouts

Calling lxc-stop only when lxc-shutdown fails. Lxc-stop sometimes hangs as described here https://github.com/lxc/lxc/issues/1080.

Pelagicore/softwarecontainer,tobsan/softwarecontainer,tobsan/softwarecontainer,kursatkobya/softwarecontainer,frznlogic/softwarecontainer,Pelagicore/softwarecontainer,thenor/softwarecontainer,DunderRoffe/softwarecontainer,tobsan/softwarecontainer,kursatkobya/softwarecontainer,thenor/softwarecontainer,thenor/softwarecontainer,kursatkobya/softwarecontainer,thenor/softwarecontainer,DunderRoffe/softwarecontainer,frznlogic/softwarecontainer,tobsan/softwarecontainer,Pelagicore/softwarecontainer,frznlogic/softwarecontainer,DunderRoffe/softwarecontainer,frznlogic/softwarecontainer,DunderRoffe/softwarecontainer,Pelagicore/softwarecontainer,kursatkobya/softwarecontainer