Patch review - force save format autodetect on Hildon

Hey - in a 15 minute tangent from finishing my SoC work, I looked for
and found the code that I think is keeping the Hildon port from saving
in the user-requested format. The platform has a special file chooser
that has no space for a file-type dialog, so we must always auto-detect
the format based on the file extension.

However, right now, it's behaving as though ".abw" was selected as the
default format. I think the attached patch sets "Automatically
Detected" as the default, but I'd like someone to take a peek at it first.

Thanks!

-- 
Ryan Pavlik
www.cleardefinition.com
#282  +  (442) -  [X]
A programmer started to cuss
Because getting to sleep was a fuss
As he lay there in bed
Looping 'round in his head
was: while(!asleep()) sheep++;