Updated dependency versions in Gradle/Maven/Ivy builds

pom.xml

@@ -46,7 +46,7 @@
           <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-all</artifactId>
-            <version>2.1.5</version>
+            <version>2.3.6</version>
           </dependency>
         </dependencies>
       </plugin>
@@ -78,20 +78,20 @@
     <dependency>
       <groupId>org.spockframework</groupId>
       <artifactId>spock-core</artifactId>
-      <version>1.0-groovy-2.0-SNAPSHOT</version>
+      <version>1.0-groovy-2.3-SNAPSHOT</version>
       <scope>test</scope>
     </dependency>
     <!-- Optional dependencies for using Spock -->
     <dependency> <!-- enables mocking of classes (in addition to interfaces) -->
       <groupId>cglib</groupId>
       <artifactId>cglib-nodep</artifactId>
-      <version>2.2.2</version>
+      <version>3.1</version>
       <scope>test</scope>
     </dependency>
     <dependency> <!-- enables mocking of classes without default constructor (together with CGLIB) -->
       <groupId>org.objenesis</groupId>
       <artifactId>objenesis</artifactId>
-      <version>1.2</version>
+      <version>2.1</version>
       <scope>test</scope>
     </dependency>
     <dependency> <!-- only necessary if Hamcrest matchers are used -->
@@ -104,7 +104,7 @@
     <dependency>
       <groupId>com.h2database</groupId>
       <artifactId>h2</artifactId>
-      <version>1.3.168</version>
+      <version>1.4.181</version>
     </dependency>
   </dependencies>
 
@@ -130,7 +130,7 @@
     </pluginRepository>
   </pluginRepositories>
 
-  <!-- Only required for spock-example build -->
+  <!-- Only required by spock-example build -->
   <distributionManagement>
     <repository>
       <id>foo</id>