Changelog for Hipmunk-0.2.1

Version 0.2.1 ============= - Small fix for GHC 6.10. Thanks Pekka Karjalainen and Creighton Hogg for the reports, and sorry for the delay. Version 0.2 =========== - Fix a subtle bug within Space that would keep some ForeignPtr's alive longer than needed, thus leaking memory. Version 0.1 =========== - Initial public release.