Add an upper bound to the dependency on parallel, because parallel 3.1+ breaks it.  Look at wider compatibility later.
Add an upper bound to the dependency on parallel, because parallel 3.1+ breaks it.  Look at wider compatibility later.

Ignore-this: 10a64fd88eb694b3a97b776c323799e0

darcs-hash:20100721230828-2bae8-2a253429b8bcfd1c4c7a15c11f771b3ba8db4e15.gz

the-real-blackh/hexpat,the-real-blackh/hexpat,the-real-blackh/hexpat