* Boot into the installer by default; it can still be aborted.
* Remove the dysfunct rescue installer. The normal installer
now has a better rescue tool called "Import configuration".
* Move and rework the installer launcher as rc.installer. It
can be called at any time if needed.
We can dash out jails, use them for development or production
environments even. Sure, they may not support some priviledged
operation, but keeping weird glue around that is probably not
in all the places it should be is weird.
Make "src" the implicit "/usr/local" so that nobody can
sneak in weird files in the base file system or potentially
overwrite them.
This is the last time, I swear... :)
