Add prerequisites to script (#174)

3rdparty/caffe/install_caffe_if_cuda8.sh

@@ -57,7 +57,11 @@ sudo apt-get --assume-yes install --no-install-recommends libboost-all-dev
     sudo apt-get --assume-yes install libgflags-dev libgoogle-glog-dev liblmdb-dev
 # fi
 # Python libs
+sudo apt-get --assume-yes install python-setuptools python-dev build-essential
+sudo easy_install pip
 sudo -H pip install --upgrade numpy protobuf
+sudo apt-get install python-numpy
+sudo ldconfig
 # OpenCV 2.4
 # sudo apt-get --assume-yes install libopencv-dev
 exitIfError