Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit ba7ed18443fb0789526f9d03af7aa34e953aaa6d.
diff --git a/algebricks/algebricks-common/pom.xml b/algebricks/algebricks-common/pom.xml
index 6ee5838..2898fd7 100644
--- a/algebricks/algebricks-common/pom.xml
+++ b/algebricks/algebricks-common/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>
@@ -59,7 +59,7 @@
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>hyracks-api</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-compiler/pom.xml b/algebricks/algebricks-compiler/pom.xml
index 92bfcdc..df3680e 100644
--- a/algebricks/algebricks-compiler/pom.xml
+++ b/algebricks/algebricks-compiler/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>
@@ -59,12 +59,12 @@
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>algebricks-rewriter</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>algebricks-core</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-core/pom.xml b/algebricks/algebricks-core/pom.xml
index ef95507..e64de6c 100644
--- a/algebricks/algebricks-core/pom.xml
+++ b/algebricks/algebricks-core/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>
@@ -59,27 +59,27 @@
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>hyracks-storage-am-btree</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>hyracks-storage-am-rtree</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>hyracks-dataflow-std</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>algebricks-runtime</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>algebricks-common</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-data/pom.xml b/algebricks/algebricks-data/pom.xml
index b820801..a04060d 100644
--- a/algebricks/algebricks-data/pom.xml
+++ b/algebricks/algebricks-data/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>
@@ -59,12 +59,12 @@
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>algebricks-common</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>hyracks-data-std</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-examples/piglet-example/pom.xml b/algebricks/algebricks-examples/piglet-example/pom.xml
index 6d41868..f8e9ea0 100644
--- a/algebricks/algebricks-examples/piglet-example/pom.xml
+++ b/algebricks/algebricks-examples/piglet-example/pom.xml
@@ -24,7 +24,7 @@
  <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks-examples</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <properties>
@@ -123,7 +123,7 @@
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>algebricks-compiler</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>0.2.17-incubating</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-examples/pom.xml b/algebricks/algebricks-examples/pom.xml
index 466b85d..c06e348 100644
--- a/algebricks/algebricks-examples/pom.xml
+++ b/algebricks/algebricks-examples/pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>
diff --git a/algebricks/algebricks-rewriter/pom.xml b/algebricks/algebricks-rewriter/pom.xml
index 24def19..d4638e6 100644
--- a/algebricks/algebricks-rewriter/pom.xml
+++ b/algebricks/algebricks-rewriter/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>
@@ -59,7 +59,7 @@
   	<dependency>
   		<groupId>org.apache.hyracks</groupId>
   		<artifactId>algebricks-core</artifactId>
-  		<version>0.2.18-SNAPSHOT</version>
+  		<version>0.2.17-incubating</version>
   	</dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-runtime/pom.xml b/algebricks/algebricks-runtime/pom.xml
index afb0e06..693b589 100644
--- a/algebricks/algebricks-runtime/pom.xml
+++ b/algebricks/algebricks-runtime/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>
@@ -59,27 +59,27 @@
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>hyracks-storage-am-btree</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>hyracks-storage-am-rtree</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>hyracks-dataflow-std</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>algebricks-common</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   <dependency>
   	<groupId>org.apache.hyracks</groupId>
   	<artifactId>algebricks-data</artifactId>
-  	<version>0.2.18-SNAPSHOT</version>
+  	<version>0.2.17-incubating</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-tests/pom.xml b/algebricks/algebricks-tests/pom.xml
index f99a786..9a17ed4 100644
--- a/algebricks/algebricks-tests/pom.xml
+++ b/algebricks/algebricks-tests/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>
@@ -122,22 +122,22 @@
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>algebricks-compiler</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>0.2.17-incubating</version>
     </dependency>
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-control-cc</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>0.2.17-incubating</version>
     </dependency>
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-control-nc</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>0.2.17-incubating</version>
     </dependency>
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-data-std</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>0.2.17-incubating</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/pom.xml b/algebricks/pom.xml
index 41469a8..525f733 100644
--- a/algebricks/pom.xml
+++ b/algebricks/pom.xml
@@ -21,14 +21,14 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.apache.hyracks</groupId>
   <artifactId>algebricks</artifactId>
-  <version>0.2.18-SNAPSHOT</version>
+  <version>0.2.17-incubating</version>
   <packaging>pom</packaging>
   <name>algebricks</name>
 
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>apache-asterixdb-hyracks</artifactId>
-    <version>0.2.18-SNAPSHOT</version>
+    <version>0.2.17-incubating</version>
   </parent>
 
   <licenses>