Added materials for learning
new file:   materials/caffe/TrainingMNISTwithCaffe/lecun-01a.pdf
new file:   materials/caffe/caffe-presentation.pdf
new file:   materials/caffe/caffe.pdf
new file:   materials/ubuntu/LinuxFun.pdf
new file:   materials/ubuntu/ubunturef.pdf
Merge branch 'master' of https://github.com/zhushun0008/myCaffeLearning