[PATCH] add udi and some more checks to libhal

[Danny Kukawka]

On Samstag, 24. November 2007, Danny Kukawka wrote:
> Hi,
>
> this patch adds:
> * a minimal check if a given UDI is valid (checks if the UDI starts
> with '/org/freedesktop/Hal/devices/'). This should prevent possible
> (application) crashes if a invalid UDI is send to HAL and reduce unneeded
> dbus calls.
> * some more parameter checks (for LibHalChangeSet, keys ...)

Any comments? Okay to commit?

Danny