vopono 0.8.9

Changelog:

• Switch custom provider network namespace and veth link names to use the hash of the config filename (instead of the first characters), so they will be distinct for config files with the same prefix. See issue #115
• Add work-around for when $HOME is set for root - see issue #116
• Allow network interface to be overridden even when provided network interface is not in UP state - see issue #120
• Update sysinfo dependency