[nicl] branch is now closed

[Maurizio Cimadamore]

Dear citizens of the Isthmus,
as you might have noticed, over the last few months all the development 
activity regarding foreign data/function interface has moved from the 
'nicl' branch to the 'foreign' branch. We have achieved feature parity 
between the two branches about two months ago; right now the set of 
functionalities available in the foreign branch greatly surpasses those 
provided by the legacy nicl branch, which is no longer worked on.

For this reason, and also to minimize confusion and potential for 
errors, we have just closed the legacy 'nicl' branch. This doesn't mean 
the code has disappeared - you can in fact still update to 'nicl' (hg 
update nicl); but the 'nicl' branch will no longer be shown in the list 
of active branches (by the 'hg branches' command).

Cheers
Maurizio