Version 1.5.0 release candidate 2

• Fix black screen with Qt app in Docker container
• Detect when command in the container exit
• Docker when the aux console exit and restart it
• Pass by default the environment variable container=docker
• Fix busybox binary location
• Avoid loosing console port for Docker
• Workaround a crash in x11vnc
• Delete volume when dropping the container
• Catch connection reset in ioucon
• Delete vlan.dat for L2IOL during config import. Fixes #1285.
• Copy original ressources from VOLUMES