Fixes to compile under OSX 10.9

Dear Onur,

Please find here some fixes to compile OpenGazer/CVC Eye-Tracker under OSX 10.9, mostly forcing the namespace of shared_ptr to boost and some missing includes. I also had to fix vxl too, a Portfile is available here https://github.com/ChristianFrisson/MacPortsCycles for that purpose.

Best regards,
Christian