[NEXUS-6576] Update to commons-beanutils 1.9.1, enforce older stuff isn't used
The getTestCustomModules() method should not be used

Moving off that method, using new one introduced by
Stuart (customizeModules(List))
upgrade KZ to 0.5.4
[NEXUS-6286] Upgrade to siesta 2.x w/RESTEasy
Merge pull request #516 from sonatype/move-off-deprecated-method

The org.sonatype.nexus.test.PlexusTestCaseSupport.getTestCustomModules() method should not be used
Add jackson-datatype-joda module

As it's needed in some tests.
Fixed version property name
Add missing call to super.customizeModules(modules);
Merge pull request #514 from sonatype/NEXUS-6576-update-beanutils

REVIEW: [NEXUS-6576] Update to commons-beanutils 1.9.1
Merge remote-tracking branch 'origin/master' into add-jackson-datatype-joda
Merge pull request #515 from sonatype/add-jackson-datatype-joda

Add jackson-datatype-joda module
NX-393: first pass at removing nexus-plugin packaging
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