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

This reverts commit 9aa1583eb2fde4a0fa6a95f3bcab40222918398a.
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/pom.xml
index fd01bec..d5e9e43 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
   </parent>
 
   <build>
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-btree-test/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-btree-test/pom.xml
index 9c626e8..35cb064 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-btree-test/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-btree-test/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
   </parent>
 
   <properties>
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/pom.xml
index 2e238c4..e9dae5f 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
   </parent>
 
   <build>
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/pom.xml
index 446a050..a3d8f4b 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
   </parent>
 
   <build>
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/pom.xml
index 738e6e0..983c645 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <artifactId>hyracks-tests</artifactId>
     <groupId>org.apache.hyracks</groupId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
     <relativePath>..</relativePath>
   </parent>
 
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/pom.xml
index 10fc2fe..6421be6 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
   </parent>
 
   <build>
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/pom.xml
index 4cb6104..df8bc1e 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
   </parent>
 
   <build>
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/pom.xml
index 4ee602a..f42ec3b 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
   </parent>
   <build>
     <plugins>
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/pom.xml b/hyracks-fullstack/hyracks/hyracks-tests/pom.xml
index 883a02b..b03d311 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-tests/pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.19-SNAPSHOT</version>
+    <version>0.2.18</version>
   </parent>
 
   <licenses>