Cleanup Versions In POM Files

- Eliminate redundant version references
- Defer to ${project.version} when appropriate
- Pickup hyracks module version from dependency management

Change-Id: I6e468931024831db41ba9e2f6e48f0be0ba3373a
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1039
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>
diff --git a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-1.x/pom.xml b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-1.x/pom.xml
index 95d3a2e..9e8d185 100644
--- a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-1.x/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-1.x/pom.xml
@@ -92,7 +92,7 @@
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-api</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>${project.version}</version>
       <type>jar</type>
       <scope>compile</scope>
     </dependency>
diff --git a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-2.x/pom.xml b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-2.x/pom.xml
index 8fccf77..7cca256 100644
--- a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-2.x/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-2.x/pom.xml
@@ -229,7 +229,7 @@
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-api</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>${project.version}</version>
       <type>jar</type>
       <scope>compile</scope>
     </dependency>
diff --git a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
index ac3ee9b..8d019d9 100644
--- a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
@@ -203,31 +203,31 @@
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-api</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>${project.version}</version>
       <scope>compile</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-dataflow-std</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>${project.version}</version>
       <scope>compile</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-dataflow-common</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>${project.version}</version>
       <scope>compile</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-control-cc</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>${project.version}</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-control-nc</artifactId>
-      <version>0.2.18-SNAPSHOT</version>
+      <version>${project.version}</version>
       <scope>test</scope>
     </dependency>
     <dependency>