Update to anaconda 4.3.0, remove virtualenv

install/from-scratch.sh

@@ -32,10 +32,12 @@ if [ "$(uname)" == "Linux" ]; then
     TENSORFLOW=tensorflow
     MYGCCPACKAGE="gcc=4.8.5"
     MYLIBGCCPKG="libgcc=4.8.5"
+    ANACONDA="anaconda=4.2.0"
 else
     TENSORFLOW=
     MYGCCPACKAGE=
     MYLIBGCCPKG=
+    ANACONDA="anaconda=4.3.0"
 fi
 
 # For a complete list of dependencies, please read:
@@ -71,7 +73,7 @@ ${CONDA} create --copy --yes -n ${NAME} \
   scipy \
   sphinx \
   sqlalchemy \
-  anaconda=4.3.0 \
+  ${ANACONDA} \
   boost=1.61 \
   ${CAFFE} \
   cmake \