MODE-2275 Fixed Schemata caching by the JcrNodeTypeManager, which caused newly registered node types to not be visible as long as they are registered with the same namespace.

Conflicts:
	modeshape-jcr/src/test/java/org/modeshape/jcr/JcrQueryManagerTest.java
Merge pull request #1209 from hchiorean/MODE-2275

MODE-2275 Fixed Schemata caching by the JcrNodeTypeManager, which caused newly registered node types to not be visible as long as they are registered with the same namespace.