[maven-release-plugin] prepare release 2.0.0-preview-rc1
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 24a7912..4dcbe8b 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.apache.bahir</groupId>
         <artifactId>bahir-parent_2.11</artifactId>
-        <version>2.0.0-SNAPSHOT</version>
+        <version>2.0.0-preview</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pom.xml b/pom.xml
index 13de81a..6534cff 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,8 +16,7 @@
   ~ limitations under the License.
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>org.apache</groupId>
@@ -26,7 +25,7 @@
   </parent>
   <groupId>org.apache.bahir</groupId>
   <artifactId>bahir-parent_2.11</artifactId>
-  <version>2.0.0-SNAPSHOT</version>
+  <version>2.0.0-preview</version>
   <packaging>pom</packaging>
   <name>Apache Bahir - Parent POM</name>
   <url>http://bahir.apache.org/</url>
@@ -41,7 +40,7 @@
     <connection>scm:git:git@github.com:apache/bahir.git</connection>
     <developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/bahir.git</developerConnection>
     <url>scm:git:git@github.com:apache/bahir.git</url>
-    <tag>HEAD</tag>
+    <tag>2.0.0-preview-rc1</tag>
   </scm>
   <issueManagement>
     <system>JIRA</system>
@@ -106,7 +105,7 @@
     <jsr305.version>3.0.1</jsr305.version>
 
     <test.java.home>${java.home}</test.java.home>
-    <test.exclude.tags></test.exclude.tags>
+    <test.exclude.tags />
 
     <!-- Modules that copy jars to the build directory should do so under this location. -->
     <jars.target.dir>${project.build.directory}/scala-${scala.binary.version}/jars</jars.target.dir>
@@ -590,7 +589,7 @@
             <junitxml>.</junitxml>
             <filereports>SparkTestSuite.txt</filereports>
             <argLine>-ea -Xmx3g -XX:MaxPermSize=${MaxPermGen} -XX:ReservedCodeCacheSize=${CodeCacheSize}</argLine>
-            <stderr/>
+            <stderr />
             <environmentVariables>
               <!--
                 Setting SPARK_DIST_CLASSPATH is a simple way to make sure any child processes
@@ -735,7 +734,7 @@
                     </goals>
                   </pluginExecutionFilter>
                   <action>
-                    <ignore></ignore>
+                    <ignore />
                   </action>
                 </pluginExecution>
                 <pluginExecution>
@@ -748,7 +747,7 @@
                     </goals>
                   </pluginExecutionFilter>
                   <action>
-                    <ignore></ignore>
+                    <ignore />
                   </action>
                 </pluginExecution>
                 <pluginExecution>
@@ -761,7 +760,7 @@
                     </goals>
                   </pluginExecutionFilter>
                   <action>
-                    <ignore></ignore>
+                    <ignore />
                   </action>
                 </pluginExecution>
               </pluginExecutions>
diff --git a/streaming-akka/pom.xml b/streaming-akka/pom.xml
index 1dc87e4..497d680 100644
--- a/streaming-akka/pom.xml
+++ b/streaming-akka/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.bahir</groupId>
     <artifactId>bahir-parent_2.11</artifactId>
-    <version>2.0.0-SNAPSHOT</version>
+    <version>2.0.0-preview</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/streaming-mqtt/pom.xml b/streaming-mqtt/pom.xml
index efa62ca..65f7b64 100644
--- a/streaming-mqtt/pom.xml
+++ b/streaming-mqtt/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.bahir</groupId>
     <artifactId>bahir-parent_2.11</artifactId>
-    <version>2.0.0-SNAPSHOT</version>
+    <version>2.0.0-preview</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/streaming-twitter/pom.xml b/streaming-twitter/pom.xml
index 995fba3..d5ecce1 100644
--- a/streaming-twitter/pom.xml
+++ b/streaming-twitter/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.bahir</groupId>
     <artifactId>bahir-parent_2.11</artifactId>
-    <version>2.0.0-SNAPSHOT</version>
+    <version>2.0.0-preview</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/streaming-zeromq/pom.xml b/streaming-zeromq/pom.xml
index aca7d23..fdf0b19 100644
--- a/streaming-zeromq/pom.xml
+++ b/streaming-zeromq/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.bahir</groupId>
     <artifactId>bahir-parent_2.11</artifactId>
-    <version>2.0.0-SNAPSHOT</version>
+    <version>2.0.0-preview</version>
     <relativePath>../pom.xml</relativePath>
   </parent>