Update Dockerfile-Build

Author: Gunasekar-K

docker/Dockerfile-Build

@@ -12,8 +12,9 @@ WORKDIR /$APPNAME
 # Install dependencies
 RUN npm install -g bower
 RUN npm install -g grunt-cli
+RUN npm install grunt 
 RUN bower install --allow-root
-RUN npm install -g grunt 
+
 
 # Build