style command "dashes" but not "pseudobondRadius" works with pb model spec

[Elaine Meng]

The style command "dashes" option works with pb model specified directly, but its "pseudobondRadius" option only works if the corresponding atoms are specified instead. Should make the latter also work with pb model spec.

Example:
open 1bna
style #1.1 dashes 0
style #1.1 pseudobondrad 0.5
... that does nothing, must instead use
style #1 ps 0.5

Maybe that's not so bad, but it's more confusing when the pseudobonds are a separate model like struts, e.g.

struts @n1 fat false
style #2 ps .1
(instead need: style @n1 ps .1)

[Tom Goddard]

Fixed.

Just forgot to make this work when I added support for specifying pseudobond groups for the dashes option.