Darcs should have 'darcs remove -r' to complement 'darcs add -r'

The use case: I ran darcs add -r  only to find that it added many files I
intended to be boring. I wanted to undo that action and try again. "darcs remove
-r" would do that, but doesn't exist. 

I used 'darcs revert -a' instead, but darcs surprised me by not using "remove"
as the 'revert' of 'add', but instead completely deleted all the files without
further warning! I'm not sure whether that's just my own confusion about
'revert', or a separate bug or just a case where an extra prompt would be helpful.

While I still advocate adding "darcs remove -r", I want to note that I realized
a better solution for my "use case":

I could have used "darcs add --dry-run", which would have allowed me to make
adjustments to the boring file, without the need to remove files from darcs mgmt
after the fact.

Does anyone else here have an opinion on whether darcs remove should "-r" for a
recursive removal to complement "darcs add -r" ?

I'm pretty ambivalent.  It's not a bad flag to add.

Sounds like a useful flag

> I used 'darcs revert -a' instead, but darcs surprised me by not using
> "remove" as the 'revert' of 'add', but instead completely deleted all
> the files without further warning!

I've split that out into issue1577

I'll try to implement it.

The following patch updated the status of issue540 to be resolved:

* Resolve issue540: darcs remove --recursive 
Ignore-this: 1c1bf04aef237e7b82b2fad4d45a0840