Add Support for Node.getProperties(String[]) and Node.getNodes(String[])

It would be helpful to have support for the getNodes(String[]) and getProperties(String[]) methods defined as part of JCR 2.0. These methods are similar to the getNodes(String) and getProperties(String) method, but they put each glob expression in its own string instead of pipe-delimiting all globs in one string. They also do not trim() the incoming arguments.