GObject's property with _ issue

	Hi!

I am not sure what to do exactly with underscore used in property name.
Gobject library replaces all '_' with '-' in property name.

1. Trigger an error while schema is parsed?
2. Trigger a warning and wait for unconditional errors?
3. Use black magic for such properties?

The first one seems to me the only one solution.

Piotras