Data.Map, Data.IntMap documentation (1611)

[Andriy Palamarchuk]

Thanks everybody for the corrections and suggestions. 
Finally I got back to this work.
Sorry it took this long to respond.

Log comment:
Improved, fixed documentation for Data.Map,
Data.IntMap. Added examples.

Changes since the first submission:
* Moved time complexity Big-O values back to the
beginning of function descriptions.
* Converted examples from interpreter session-like
format to more compact equation-like format.
* As per
http://www.haskell.org/pipermail/libraries/2007-March/007304.html
added following information to the description of
updateLookupWithKey:

   The function returns changed value, if it is
updated.
   Returns the original key value if the map entry is
deleted.

Ticket:
http://hackage.haskell.org/trac/ghc/ticket/1611

Haddock output:
http://hackage.haskell.org/trac/ghc/attachment/ticket/1611/Data-Map.html?format=raw

Comments, suggestions, critique?
Did I miss anything?
I'll update IntMap for the final review.
Andriy

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com