updated nifi docker file to use proper marklogic nifi nars

Author: Dermot Smyth

examples/docker-projects/single-node-with-nifi/src/main/docker/nifi/Dockerfile

@@ -1,8 +1,8 @@
-FROM "apache/nifi:1.7.0"
+FROM "apache/nifi:1.7.1"
 
 USER root
-ADD  https://raw.githubusercontent.com/marklogic/nifi-nars/master/nifi-marklogic-nar-1.8.0-SNAPSHOT.nar /opt/nifi/nifi-1.7.0/lib/
-ADD  https://raw.githubusercontent.com/marklogic/nifi-nars/master/nifi-marklogic-services-api-nar-1.8.0-SNAPSHOT.nar /opt/nifi/nifi-1.7.0/lib/
+ADD  https://github.com/marklogic/nifi/releases/download/marklogic-1.7.1.1/nifi-marklogic-nar-1.7.1.1.nar /opt/nifi/nifi-1.7.0/lib/
+ADD  https://github.com/marklogic/nifi/releases/download/marklogic-1.7.1.1/nifi-marklogic-services-api-nar-1.7.1.1.nar /opt/nifi/nifi-1.7.0/lib/
 RUN  chown nifi:nifi /opt/nifi/nifi-1.7.0/lib/nifi-marklogic*
 
 RUN  mkdir /data