Add golang.org lib.

build/pack/build.sh

@@ -13,9 +13,11 @@ FINAL_NAME=$VERSION_NAME.linux-amd64.tar.gz
 
 cd $GOPATH
 
-echo "golang.org . Please download from: https://github.com/eyebluecn/golang.org and put in the directory with same level of github.com"
 # echo "go get golang.org/x"
 # go get golang.org/x
+if [ -z "$GOPATH/src/golang.org" ] ; then
+  git clone https://github.com/eyebluecn/golang.org.git $GOPATH/src/golang.org
+fi
 
 # resize image
 echo "go get github.com/disintegration/imaging"