repository-utils should support Tycho 0.22.0

[INFO] --- repository-utils:0.21.0:generate-repository-facade (generate-facade) @ parent ---
[WARNING] Error injecting: org.jboss.tools.tycho.sitegenerator.GenerateRepositoryFacadeMojo
java.lang.NoClassDefFoundError: org/eclipse/tycho/core/facade/BuildProperties
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
	at java.lang.Class.getDeclaredMethods(Class.java:1810)
	at com.google.inject.spi.InjectionPoint.getInjectionPoints(InjectionPoint.java:674)
	at com.google.inject.spi.InjectionPoint.forInstanceMethodsAndFields(InjectionPoint.java:366)
	at com.google.inject.internal.ConstructorBindingImpl.getInternalDependencies(ConstructorBindingImpl.java:165)
	at com.google.inject.internal.InjectorImpl.getInternalDependencies(InjectorImpl.java:609)
	at com.google.inject.internal.InjectorImpl.cleanup(InjectorImpl.java:565)
	at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:551)
	at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:865)
	at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:790)
	at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:278)
	at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:210)
	at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:986)
	at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1019)
	at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:982)
	at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1032)
	at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48)
	at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:86)
	at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:55)
	at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:70)
	at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:100)
	at org.eclipse.sisu.plexus.PlexusLifecycleManager.onProvision(PlexusLifecycleManager.java:133)
	at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:109)
	at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:55)
	at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:68)
	at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:47)
	at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:997)
	at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1047)
	at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:993)
	at com.google.inject.Scopes$1$1.get(Scopes.java:59)
	at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:82)
	at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
	at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:260)
	at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:252)
	at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:459)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:97)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.ClassNotFoundException: org.eclipse.tycho.core.facade.BuildProperties
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:259)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:235)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:227)
	... 57 more
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 38.487s
[INFO] Finished at: Wed Nov 26 09:26:48 EST 2014
[INFO] Final Memory: 18M/490M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.jboss.tools.tycho-plugins:repository-utils:0.21.0:generate-repository-facade (generate-facade) on project parent: Execution generate-facade of goal org.jboss.tools.tycho-plugins:repository-utils:0.21.0:generate-repository-facade failed: A required class was missing while executing org.jboss.tools.tycho-plugins:repository-utils:0.21.0:generate-repository-facade: org/eclipse/tycho/core/facade/BuildProperties
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>org.jboss.tools.tycho-plugins:repository-utils:0.21.0
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/home/nboldt/.m2/repository/org/jboss/tools/tycho-plugins/repository-utils/0.21.0/repository-utils-0.21.0.jar
[ERROR] urls[1] = file:/home/nboldt/.m2/repository/org/eclipse/tycho/tycho-packaging-plugin/0.21.0/tycho-packaging-plugin-0.21.0.jar
[ERROR] urls[2] = file:/home/nboldt/.m2/repository/org/codehaus/plexus/plexus-utils/3.0.7/plexus-utils-3.0.7.jar
[ERROR] urls[3] = file:/home/nboldt/.m2/repository/org/apache/maven/maven-archiver/2.5/maven-archiver-2.5.jar
[ERROR] urls[4] = file:/home/nboldt/.m2/repository/org/codehaus/plexus/plexus-archiver/2.2/plexus-archiver-2.2.jar
[ERROR] urls[5] = file:/home/nboldt/.m2/repository/org/codehaus/plexus/plexus-io/2.0.4/plexus-io-2.0.4.jar
[ERROR] urls[6] = file:/home/nboldt/.m2/repository/org/eclipse/tycho/org.eclipse.osgi.compatibility.state/1.0.0.v20140403-1907/org.eclipse.osgi.compatibility.state-1.0.0.v20140403-1907.jar
[ERROR] urls[7] = file:/home/nboldt/.m2/repository/net/sf/saxon/saxon/8.7/saxon-8.7.jar
[ERROR] urls[8] = file:/home/nboldt/.m2/repository/net/sf/saxon/saxon-dom/8.7/saxon-dom-8.7.jar
[ERROR] urls[9] = file:/home/nboldt/.m2/repository/com/googlecode/maven-download-plugin/download-maven-plugin/1.2.0/download-maven-plugin-1.2.0.jar
[ERROR] urls[10] = file:/home/nboldt/.m2/repository/junit/junit/3.8.1/junit-3.8.1.jar
[ERROR] urls[11] = file:/home/nboldt/.m2/repository/commons-io/commons-io/1.4/commons-io-1.4.jar
[ERROR] urls[12] = file:/home/nboldt/.m2/repository/org/apache/httpcomponents/httpclient/4.0-beta2/httpclient-4.0-beta2.jar
[ERROR] urls[13] = file:/home/nboldt/.m2/repository/org/apache/httpcomponents/httpcore/4.0-beta3/httpcore-4.0-beta3.jar
[ERROR] urls[14] = file:/home/nboldt/.m2/repository/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar
[ERROR] urls[15] = file:/home/nboldt/.m2/repository/commons-codec/commons-codec/1.3/commons-codec-1.3.jar
[ERROR] urls[16] = file:/home/nboldt/.m2/repository/org/sonatype/sisu/sisu-inject-bean/1.4.2/sisu-inject-bean-1.4.2.jar
[ERROR] urls[17] = file:/home/nboldt/.m2/repository/org/sonatype/sisu/sisu-guice/2.1.7/sisu-guice-2.1.7-noaop.jar
[ERROR] urls[18] = file:/home/nboldt/.m2/repository/org/sonatype/aether/aether-util/1.7/aether-util-1.7.jar
[ERROR] urls[19] = file:/home/nboldt/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.14/plexus-interpolation-1.14.jar
[ERROR] urls[20] = file:/home/nboldt/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
[ERROR] urls[21] = file:/home/nboldt/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
[ERROR] urls[22] = file:/home/nboldt/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.4/plexus-component-annotations-1.5.4.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import  from realm ClassRealm[project>org.jboss.tools:parent:4.3.0.Alpha1-SNAPSHOT, parent: ClassRealm[maven.api, parent: null]]]
[ERROR] 
[ERROR] -----------------------------------------------------: org.eclipse.tycho.core.facade.BuildProperties