More changes from PR jenkinsci#67

Change version of org.jenkins-ci.plugins/plugin from 2.22 to 2.29, which
is the last version that works with a Java7 JDK.
PR jenkinsci#67 upgraded to 2.30 which is Java8-only, and I'm hoping to avoid
that at present.

Author: pjdarton

pom.xml

@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.jenkins-ci.plugins</groupId>
         <artifactId>plugin</artifactId>
-        <version>2.22</version>
+        <version>2.29</version>
     </parent>
 
     <artifactId>vsphere-cloud</artifactId>
@@ -32,14 +32,14 @@
             <comments>A business-friendly OSS license</comments>
         </license>
      </licenses>
- 
+
     <scm>
         <connection>scm:git:https://github.com/jenkinsci/vsphere-cloud-plugin.git</connection>
         <developerConnection>scm:git:https://git@github.com/jenkinsci/vsphere-cloud-plugin.git</developerConnection>
         <url>https://github.com/jenkinsci/vsphere-cloud-plugin</url>
         <tag>HEAD</tag>
-    </scm>    
-  
+    </scm>
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
@@ -58,7 +58,7 @@
             <url>http://repo.jenkins-ci.org/public/</url>
         </pluginRepository>
     </pluginRepositories>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.kohsuke.stapler</groupId>
@@ -106,7 +106,7 @@
                 <groupId>org.jenkins-ci.tools</groupId>
                 <artifactId>maven-hpi-plugin</artifactId>
                 <configuration>
-                    <disabledTestInjection>true</disabledTestInjection>
+                    <disabledTestInjection>false</disabledTestInjection>
                 </configuration>
             </plugin>
             <plugin>