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