0.9.4

Fixed some issues, cleaned some code

UGRD prints the version at runtime.

copy/symlink are now forced to target the initramfs.

Simplified hooks, now all hooks for build and init are defined in modules

Made mount destination paths absolute by the dict validator

Ensure that proc is the last to be unmounted

Exec bash if switch_root target is not a mount

Ensure function names don't override pulled binaries.

Full Changelog: 0.9.3...0.9.4