Add JMX statistics for ehcache
Adding catalog example for doc, plus command line calls for creating the XML Schema and loading a catalog (to test for static errors)
util: add exported version for org.osgi.service.log

Otherwise, the LogService is not exported.

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
Merge remote-tracking branch 'origin/master' into new-paymentpluginapi