Updated MacPorts portfiles

I have updated the portfiles to support installation on Mac OS X via MacPorts. This brings support to

RTT v1.10.2 (with associated patch file)
KDL v1.0.1 (now with Python 2.5 support)
BFL v0.7.0
OCL v1.10.1

See the instructions on the wiki page


I will be submitting these to MacPorts as official ports, though I hear that it can take quite some time to get a new port into the system ...

Please let me know if you have any issues.