- Addon switches between filesystem-packing and Shaman-packing
automatically, depending on whether the Manager has Shaman enabled.
- Actually using BAT for Shaman packing.
It doesn't work though, some error occurs when receiving Shaman response
from the Manager in the Addon.
This commit also switches to a hardcoded version ("3.0") to the version
from Git (like the Go executables use). Because there are no tags for
this branch yet, this is just the Git commit hash.
