zcl 0.4

Another thing over the weekend I did was update zcl to cover OpenCL 2.0 and drop out a 0.4 release. It's completely untested at this point.

See the homepage

Once I do some testing and perhaps revisit the libCL linking mechanism I guess I'll do a 1.0, but given 0.3 was a year ago, ... yeah - don't hold your breath :)