Things like error messages (e.g in the io pkg) are actually allocated
when init() is executed. Unless we trigger a call to init(), values like
this will be nil causing various problems when we try to use functions
from the stdlib.
By setting up pwd as a Go workspace, we can trim import paths from
something like "github.com/achilleasa/gopher-os/kernel" to just
"kernel".
These changes make forking easier and also allows us to move the code to
a different git hosting provider without having to rewrite the imports.
