Updated kafka to v1.0.0. Updated Zookeeper to v3.4.10. Updated traefik to v1.4.2

templates/kafka/4/README.md

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+# Apache Kafka
+
+### Info:
+
+ This template creates, scale in and scale out a multinodes kafka broker cluster on top of Rancher. The configuration is generated with confd from Rancher metadata. 
+ Cluster size are variable after deployment, and get reconfigured after refresh interval.
+ 
+ 
+### Usage:
+
+ Select Apache Kafka from catalog. 
+ 
+ Enter the number of nodes, mem and refresh interval for the kafka cluster.
+ 
+ Change the following kafka default parameters, if you need:
+
+- kafka_scale=3							# kafka scale to deploy.
+- kafka_mem=512							# kafka broker memory.
+- kafka_log_dir="/opt/kafka/logs"		# Kafka log dir.
+- kafka_log_retention="168"				# kafka log retention. 
+- kafka_num_partitions="1"				# Kafka partitions number
+- kafka_delete_topics="false"			# kafka delete topics
+- kafka_auto_create_topics="true"		# kafka auto create topics
+- kafka_replication_factor=1 			# Kafka replication factor
+- kafka_pub_ip= < true | false >		# Advertise public ip to zookeeper.
+- zk_link="kafka-zk/zk" 				# zookeeper stack/service to connect to.
+ 
+ Click deploy.
+ 
+ Kafka can now be accessed over the Rancher network. 
+
+ Note: When you scale the cluster, zero downtime is not guaranteed..yet..