ddbg: run to cursor in C::B misbehaves

[sd]

Run to cursor appears to set a permanent breakpoint instead of a temporary  
one.
The gui (correctly) doesn't show it as a breakpoint, it just behaves like  
there's one there.

Also, if you start a program with run to cursor it just runs to the first  
hard breakpoint or to completion if there aren't any.

And finally: can the pause at the end of a console output run be emulated  
when run via ddbg? At the moment it just closes the console. I find that  
feature very useful.


- S