StringMaps available

[Adrian Hey]

Hello,

I've put the first release of Data.StringMap here..
 http://homepages.nildram.co.uk/~ahey/HLibs/Data.StringMap/

The implementation is a bit different than what was discussed
earlier as I decided the first version would burn heap unecessarily.
It's still based on Tries though.

I'm afraid I won't be able to do much Haskelling for a few months
so not much will be added in the near future. But if anybody would
like to use this but finds the absence of some function or other
a show stopping issue then let me know and I'll add it.

Regards
--
Adrian Hey