pycaffe: store a shared_ptr<CaffeNet> in SGDSolver
pycaffe: store a shared_ptr<CaffeNet> in SGDSolver

Doing this, rather than constructing the CaffeNet wrapper every time,
will allow the wrapper to hold references that last at least as long as
SGDSolver (which will be necessary to ensure that data used by
MemoryDataLayer doesn't get freed).

xidianwlc/caffe,flickr/caffe,shiquanwang/caffe,CZCV/s-dilation-caffe,sichenucsd/caffe_si,longjon/caffe,MoskalenkoViktor/caffe,dylansun/caffe,naeluh/caffe,shuimulinxi/caffe,Hilovaiserillis/caffe,CZCV/s-dilation-caffe,gnina/gnina,minghuam/caffe,orentadmor/caffe,CVML/sds_eccv2014,tackgeun/caffe,yikeliu/caffe-future,nicodjimenez/caffe,yikeliu/caffe-future,xidianwlc/caffe,suixudongi8/caffe,Hilovaiserillis/caffe,orentadmor/caffe,pcoving/caffe,shuimulinxi/caffe,MoskalenkoViktor/caffe,dculibrk/boosted_pooling,gogartom/caffe-textmaps,nicodjimenez/caffe,gnina/gnina,naeluh/caffe,shuimulinxi/caffe,flickr/caffe,nicodjimenez/caffe,CZCV/s-dilation-caffe,MoskalenkoViktor/caffe,Hilovaiserillis/caffe,liuxianming/caffe_feedback,dculibrk/boosted_pooling,dculibrk/boosted_pooling,audtlr24/caffe,shuimulinxi/caffe,nicodjimenez/caffe,naeluh/caffe,niuzhiheng/caffe,wangg12/caffe,dculibrk/boosted_pooling,gogartom/caffe-textmaps,niuzhiheng/caffe,yikeliu/caffe-future,wangg12/caffe,gogartom/caffe-textmaps,tackgeun/caffe,bharath272/sds_eccv2014,gnina/gnina,dylansun/caffe,sichenucsd/caffe_si,MoskalenkoViktor/caffe,niuzhiheng/caffe,Hilovaiserillis/caffe,wangg12/caffe,MoskalenkoViktor/caffe,pcoving/caffe,minghuam/caffe,audtlr24/caffe,pcoving/caffe,orentadmor/caffe,vibhav-vineet/caffe,flickr/caffe,xidianwlc/caffe,xidianwlc/caffe,niuzhiheng/caffe,tackgeun/caffe,pcoving/caffe,suixudongi8/caffe,longjon/caffe,dylansun/caffe,minghuam/caffe,audtlr24/caffe,shiquanwang/caffe,orentadmor/caffe,suixudongi8/caffe,audtlr24/caffe,longjon/caffe,CZCV/s-dilation-caffe,gnina/gnina,niuzhiheng/caffe,dylansun/caffe,vibhav-vineet/caffe,shiquanwang/caffe,minghuam/caffe,yikeliu/caffe-future,naeluh/caffe,shuimulinxi/caffe,liuxianming/caffe_feedback,Hilovaiserillis/caffe,flickr/caffe,liuxianming/caffe_feedback,flickr/caffe,nicodjimenez/caffe,pcoving/caffe,tackgeun/caffe,wangg12/caffe,sichenucsd/caffe_si,vibhav-vineet/caffe,liuxianming/caffe_feedback,shiquanwang/caffe,gnina/gnina,suixudongi8/caffe,liuxianming/caffe_feedback,gogartom/caffe-textmaps,sichenucsd/caffe_si,dylansun/caffe,vibhav-vineet/caffe,gnina/gnina,audtlr24/caffe,naeluh/caffe,longjon/caffe,dculibrk/boosted_pooling