[Installer] Rough start to update
[Installer] Rough start to update

Creates the temporary directory, runs the update and if nothing changed
deletes the temporary directory but doesn't yet know what to do if there
is an update

perl6/modules.perl6.org,masak/proto,perl6/modules.perl6.org,perl6/modules.perl6.org,perl6/modules.perl6.org,masak/proto,masak/proto