[Mono-list] Support for RelaxNG compact syntax

[Atsushi Eno]

Hello,

> I was trying to parse a RelaxNG compact syntax. It worked very well 
> until I had to use the "external" keyword. It always tries to parse the 
> external file as the verbose syntax. When I use the verbose syntax for 
> the external file, it works well.

Oops, that was lack of external file type check. It distinguishes
rnc or rng when it is included (by "include" element), but not
for "external". I'll make a fix in svn soon. Thanks for the report.

Atsushi Eno