Changelog for api-tools-0.4.0.1

-*-change-log-*- 0.4.0.1 Adam Gundry <adam@well-typed.com> July 2014 * Widen dependency compatibility to support GHC 7.8.3 0.4 Adam Gundry <adam@well-typed.com> May 2014 * Support read-only fields and default values in JSON parser * Better error messages when parsing unions * More accurate version bounds in Cabal file * Support custom migrations on non-record types * Add instance IsString APIType 0.3 Adam Gundry <adam@well-typed.com> Apr 2014 * Add tool to perform generic traversals * Move API normal forms and dependency analysis to a new module 0.2 Chris Dornan <chrisd@irisconnect.co.uk> Feb 2014 * First public release