Update Makefile.CP2.64

 - Defined missing PACKAGEHOST
 - Added zmq and pyzmq to cp2 dependencies
 - Updated python version to 2.7.2
 - Updated Cython to 0.18
 - Updated atlas to 3.11.8
 - Updated hdf5 to 1.8.10
 - Updated scipy to 0.10.1
 - Updated matplotlib to 1.1.0
 - Changed several dead links to use CPPackageHost
Merge pull request #895 from sammac/patch-1

Update Makefile.CP2.64:
 - Defined missing PACKAGEHOST
 - Added zmq and pyzmq to cp2 dependencies
 - Updated python version to 2.7.2
 - Updated Cython to 0.18
 - Updated atlas to 3.11.8
 - Updated hdf5 to 1.8.10
 - Updated scipy to 0.10.1
 - Updated matplotlib to 1.1.0
 - Changed several dead links to use CPPackageHost