vspadmin is a new binary which implements one-off admin tasks which are
necessarily interactive and thus do not fit neatly into the long-lived
vspd binary.
The first behaviour added to vspadmin is the ability to create a new
vspd database. This behaviour is removed from vspd with the associated
config option deprecated. Documentation and scripts updated to reflect
the change.
This removes the --configfile option from vspd. It introduced quite a
few weird edge cases (and a fair bit of code to deal with them) but
afaik nobody actually used it. Note that the --homedir option stays, so
it is still possible to run vspd with config in a non-default location
if required.
