OSX 10.11 @rpath problem solved in BVLC/caffe

[vfdev-5]

Please, merge this from BVLC/caffe to avoid the problem of missing libcaffe-nv library when calling the tool caffe on Mac OSX >= 10.11

Thank you

[drnikolaev]

We are way too far from BVLC now, sorry.