Revert "[maven-release-plugin] prepare release helix-0.8.0"

This reverts commit 5787f7bcb7471aa3c4e25bf28da77caee7c155da.
diff --git a/helix-admin-webapp/pom.xml b/helix-admin-webapp/pom.xml
index 6e9defb..f0c78b3 100644
--- a/helix-admin-webapp/pom.xml
+++ b/helix-admin-webapp/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.helix</groupId>
     <artifactId>helix</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/helix-agent/pom.xml b/helix-agent/pom.xml
index cfeb6c7..56be751 100644
--- a/helix-agent/pom.xml
+++ b/helix-agent/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.helix</groupId>
     <artifactId>helix</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
   <artifactId>helix-agent</artifactId>
   <packaging>bundle</packaging>
diff --git a/helix-core/pom.xml b/helix-core/pom.xml
index e6a4d2d..1c9170f 100644
--- a/helix-core/pom.xml
+++ b/helix-core/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.helix</groupId>
     <artifactId>helix</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/helix-rest/pom.xml b/helix-rest/pom.xml
index 2bd02be..a3833a3 100644
--- a/helix-rest/pom.xml
+++ b/helix-rest/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.helix</groupId>
     <artifactId>helix</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index f3c54a6..145fe93 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
 
   <groupId>org.apache.helix</groupId>
   <artifactId>helix</artifactId>
-  <version>0.8.0</version>
+  <version>0.8.0-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>Apache Helix</name>
 
@@ -194,7 +194,7 @@
     <connection>scm:git:https://git-wip-us.apache.org/repos/asf/helix.git</connection>
     <developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/helix.git</developerConnection>
     <url>https://git-wip-us.apache.org/repos/asf?p=helix.git;a=summary</url>
-    <tag>helix-0.8.0</tag>
+    <tag>HEAD</tag>
   </scm>
   <issueManagement>
     <system>jira</system>
diff --git a/recipes/distributed-lock-manager/pom.xml b/recipes/distributed-lock-manager/pom.xml
index c86f25c..8ce39d7 100644
--- a/recipes/distributed-lock-manager/pom.xml
+++ b/recipes/distributed-lock-manager/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.helix.recipes</groupId>
     <artifactId>recipes</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>distributed-lock-manager</artifactId>
diff --git a/recipes/pom.xml b/recipes/pom.xml
index 2a6390d..2368820 100644
--- a/recipes/pom.xml
+++ b/recipes/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.helix</groupId>
     <artifactId>helix</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
   <groupId>org.apache.helix.recipes</groupId>
   <artifactId>recipes</artifactId>
diff --git a/recipes/rabbitmq-consumer-group/pom.xml b/recipes/rabbitmq-consumer-group/pom.xml
index 89fa56b..3f87363 100644
--- a/recipes/rabbitmq-consumer-group/pom.xml
+++ b/recipes/rabbitmq-consumer-group/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.helix.recipes</groupId>
     <artifactId>recipes</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>rabbitmq-consumer-group</artifactId>
diff --git a/recipes/rsync-replicated-file-system/pom.xml b/recipes/rsync-replicated-file-system/pom.xml
index 3cf0a36..1b14f73 100644
--- a/recipes/rsync-replicated-file-system/pom.xml
+++ b/recipes/rsync-replicated-file-system/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.helix.recipes</groupId>
     <artifactId>recipes</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>rsync-replicated-file-system</artifactId>
diff --git a/recipes/service-discovery/pom.xml b/recipes/service-discovery/pom.xml
index 15bb976..fe14708 100644
--- a/recipes/service-discovery/pom.xml
+++ b/recipes/service-discovery/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.helix.recipes</groupId>
     <artifactId>recipes</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>service-discovery</artifactId>
diff --git a/recipes/task-execution/pom.xml b/recipes/task-execution/pom.xml
index 7128dce..d91dd9a 100644
--- a/recipes/task-execution/pom.xml
+++ b/recipes/task-execution/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.helix.recipes</groupId>
     <artifactId>recipes</artifactId>
-    <version>0.8.0</version>
+    <version>0.8.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>task-execution</artifactId>