Cleanup shutdown
Cleanup shutdown

Need to handle kernel module change, and also remove pid file.

remfalc/vyt-open-vm-tools,remfalc/vyt-open-vm-tools,vyos/open-vm-tools,vyatta/open-vm-tools,remfalc/vyt-open-vm-tools,vyatta/open-vm-tools,vyos/open-vm-tools,vyos/open-vm-tools,vyatta/open-vm-tools