Changelog for json-0.4.3

Version 0.4.3: released 2009-01-17; changes from 0.4.2 * optimize some common cases..string and int literals. Reduces parse times by > 2x on larger dict inputs containing both kinds of lits. Version 0.4.2: released 2009-01-17; changes from 0.4.1 * fixed Cabal build issues with various versions of 'base' and Data.Generic * fixed whitespace-handling bug in Parsec-based frontend. Version 0.4.1: released 2009-01-12; changes from 0.3.6 * Addition of extra JSON instances: - IntMap, Set, Array, IntSet * Dropped initial letter case-lowering for constructors: - Maybe's constructors are mapped to "Nothing","Just". - Either's constructors are mapped to "Left", "Right". * Ordering's are represented by their constructor names (was funky int-mapping.) * JSON.Text.Result is now an instance of MonadError; contributed by Andy Gimblett. * Included Lennart Augustsson's contributed generic JSON encoder, in Text.JSON.Generic * Optional JSON dict-mapping for Data.Map and Data.IntMap