Updated JDO & JPA API dependencies

datanucleus/test-jpa master had enhancer errors due to picking up prerelease version 3.2.0-m3:
'''
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.718s
[INFO] Finished at: Tue Jun 11 09:03:43 CDT 2013
[INFO] Final Memory: 16M/216M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.datanucleus:datanucleus-maven-plugin:3.2.0-m3:enhance (default) on project datanucleus-test-jpa: Error executing DataNucleus tool org.datanucleus.enhancer.DataNucleusEnhancer: InvocationTargetException: javax/persistence/ForeignKey: javax.persistence.ForeignKey -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.datanucleus:datanucleus-maven-plugin:3.2.0-m3:enhance (default) on project datanucleus-test-jpa: Error executing DataNucleus tool org.datanucleus.enhancer.DataNucleusEnhancer
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
	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:320)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
	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:290)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.MojoExecutionException: Error executing DataNucleus tool org.datanucleus.enhancer.DataNucleusEnhancer
	at org.datanucleus.maven.AbstractDataNucleusMojo.executeInJvm(AbstractDataNucleusMojo.java:350)
	at org.datanucleus.maven.AbstractEnhancerMojo.enhance(AbstractEnhancerMojo.java:266)
	at org.datanucleus.maven.AbstractEnhancerMojo.executeDataNucleusTool(AbstractEnhancerMojo.java:72)
	at org.datanucleus.maven.AbstractDataNucleusMojo.execute(AbstractDataNucleusMojo.java:126)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
	... 19 more
Caused by: java.lang.reflect.InvocationTargetException
	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.datanucleus.maven.AbstractDataNucleusMojo.executeInJvm(AbstractDataNucleusMojo.java:333)
	... 24 more
Caused by: java.lang.NoClassDefFoundError: javax/persistence/ForeignKey
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2413)
	at java.lang.Class.getConstructor0(Class.java:2723)
	at java.lang.Class.getConstructor(Class.java:1676)
	at org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:630)
	at org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:301)
	at org.datanucleus.metadata.annotations.AnnotationManagerImpl.getMetaDataForClass(AnnotationManagerImpl.java:160)
	at org.datanucleus.metadata.MetaDataManager.loadAnnotationsForClass(MetaDataManager.java:2757)
	at org.datanucleus.metadata.MetaDataManager.loadPersistenceUnit(MetaDataManager.java:1015)
	at org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput(DataNucleusEnhancer.java:796)
	at org.datanucleus.enhancer.DataNucleusEnhancer.enhance(DataNucleusEnhancer.java:513)
	at org.datanucleus.enhancer.DataNucleusEnhancer.main(DataNucleusEnhancer.java:1281)
	... 29 more
Caused by: java.lang.ClassNotFoundException: javax.persistence.ForeignKey
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	... 41 more
'''