Update install.sh to temporarily edit the `PATH` to ensure correct `node` and `npm` versions are used during installation.

install.sh

@@ -80,16 +80,28 @@ install_walnut()
 }   
 
 # Install node
+echo "----Installing Nodejs and NPM----"
 echo "v8.2.1" > /tmp/NODEJS_VER
 daplie-install-node-dev
 npm install -g npm@4
 
 # Install goldilocks
+echo "----Installing goldilocks.js----"
 daplie-install-goldilocks
 
+echo "----Installing walnut.js----"
+#$sudo_cmd mkdir -p /opt/goldilocks/{lib,bin,etc}
+#export NODE_PATH=/opt/walnut/lib/node_modules
+#export NPM_CONFIG_PREFIX=/opt/walnut
+old_PATH=$PATH
+export PATH=/opt/walnut/bin:$PATH
+
 # Install walnut
 install_walnut
 
+# Restore PATH to original value
+export PATH=$old_PATH
+
 echo ""
 echo "You must have some set of domain set up to properly use goldilocks+walnut:"
 echo ""