Update Accumulo version in Dockerfile & README.md (#12)

diff --git a/Dockerfile b/Dockerfile
index 0350ae0..6102757 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,9 +18,9 @@
 RUN yum install -y java-1.8.0-openjdk-devel make gcc-c++ wget
 ENV JAVA_HOME /usr/lib/jvm/java-1.8.0-openjdk
 
-ARG ACCUMULO_VERSION=2.0.0-alpha-1
-ARG HADOOP_VERSION=3.1.1
-ARG ZOOKEEPER_VERSION=3.4.13
+ARG ACCUMULO_VERSION=2.0.0
+ARG HADOOP_VERSION=3.2.1
+ARG ZOOKEEPER_VERSION=3.6.0
 ARG HADOOP_USER_NAME=accumulo
 ARG ACCUMULO_FILE=
 ARG HADOOP_FILE=
@@ -58,9 +58,9 @@
     cp "/tmp/$HADOOP_FILE" "hadoop.tar.gz"; \
   fi; \
   if [ -z "$ZOOKEEPER_FILE" ]; then \
-    download "zookeeper.tar.gz" "zookeeper/zookeeper-$ZOOKEEPER_VERSION/zookeeper-$ZOOKEEPER_VERSION.tar.gz"; \
+    download "zookeeper.tar.gz" "zookeeper/zookeeper-$ZOOKEEPER_VERSION/apache-zookeeper-$ZOOKEEPER_VERSION-bin.tar.gz"; \
   else \
-    cp "/tmp/$ZOOKEEPER_FILE" "zookeeper.tar.gz"; \
+    cp "/tmp/$ZOOKEEPER_FILE" "apache-zookeeper.tar.gz"; \
   fi; \
   if [ -z "$ACCUMULO_FILE" ]; then \
     download "accumulo.tar.gz" "accumulo/$ACCUMULO_VERSION/accumulo-$ACCUMULO_VERSION-bin.tar.gz"; \
@@ -73,11 +73,14 @@
 RUN tar xzf zookeeper.tar.gz -C /tmp/
 
 RUN mv /tmp/hadoop-$HADOOP_VERSION /opt/hadoop
-RUN mv /tmp/zookeeper-$ZOOKEEPER_VERSION /opt/zookeeper
+RUN mv /tmp/apache-zookeeper-$ZOOKEEPER_VERSION-bin /opt/zookeeper
 RUN mv /tmp/accumulo-$ACCUMULO_VERSION /opt/accumulo
 
 RUN /opt/accumulo/bin/accumulo-util build-native
 
+# The below line is required for Accumulo 2.0 to work with ZK 3.5 & above.  This will not be needed for Accumulo 2.1
+RUN sed -i 's/\${ZOOKEEPER_HOME}\/\*/\${ZOOKEEPER_HOME}\/\*\:\${ZOOKEEPER_HOME}\/lib\/\*/g' /opt/accumulo/conf/accumulo-env.sh
+
 ADD ./accumulo.properties /opt/accumulo/conf
 ADD ./log4j-service.properties /opt/accumulo/conf
 ADD ./log4j-monitor.properties /opt/accumulo/conf
diff --git a/README.md b/README.md
index 2a5a117..811ee38 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,6 @@
 # Apache Accumulo Docker Image
 
-**This is currently a work in progress that depends on unreleased features of Accumulo and will not be ready
-for use until after Accumulo 2.0.0 is released.**  Sometime after Accumulo 2.0.0 is released this project
-will make its first release. Eventually, this will project will create a `apache/accumulo` image at DockerHub.
+This is the first release of this project. Eventually, this project will create an `apache/accumulo` image at DockerHub.
 Until then, you will need to build your own image. The master branch of this repo creates a Docker image for
 Accumulo 2.0+. If you want to create a Docker image for Accumulo 1.9, there is a
 [1.9 branch](https://github.com/apache/accumulo-docker/tree/1.9) for that.
@@ -18,9 +16,9 @@
 
 | Software    | Version       |
 |-------------|---------------|
-| [Accumulo]  | 2.0.0-alpha-1 |
-| [Hadoop]    | 3.1.1         |
-| [Zookeeper] | 3.4.13        |
+| [Accumulo]  | 2.0.0         |
+| [Hadoop]    | 3.2.1         |
+| [ZooKeeper] | 3.6.0         |
 
 If these versions do not match what is running on your cluster, you should consider building
 your own image with matching versions. However, Accumulo must be 2.0.0+. Below are instructions for
@@ -140,4 +138,4 @@
 
 [Accumulo]: https://accumulo.apache.org/
 [Hadoop]: https://hadoop.apache.org/
-[Zookeeper]: https://zookeeper.apache.org/
+[ZooKeeper]: https://zookeeper.apache.org/