Ehcache Clustered Namespace

• ehcache-clustered-ext.xsd - latest, without version number
• ehcache-clustered-ext-3.1.xsd
• ehcache-clustered-ext-3.2.xsd
• ehcache-clustered-ext-3.3.xsd
• ehcache-clustered-ext-3.4.xsd
• ehcache-clustered-ext-3.5.xsd
• ehcache-clustered-ext-3.6.xsd
• ehcache-clustered-ext-3.7.xsd
• ehcache-clustered-ext-3.8.xsd
• ehcache-clustered-ext-3.9.xsd