Boris Feld <boris.feld@octobus.net> [Wed, 02 Jan 2019 10:29:12 +0100] rev 41093
vfs: fix proxyvfs inheritance
The proxyvfs class is designed to overwrite some of the vfs logic. Yet, it did
not use normal class inheritance. This is becoming an issue as `abstractvfs`
method could take precedence over their `proxyvfs` version.
We fix the inheritance chain to be as expected.