Handle non-existing context classloaders. Fixes #147
Don't rely on a context class loader when loading resources. Fixes #145
Added sources of embedded dependencies to jolokia-osgi.jar. Fixes #146
Softened test which fails from time to time for some environmental reasons.
Merge branch 'master' into 2.0

Conflicts:
	agent/core/src/main/java/org/jolokia/restrictor/RestrictorFactory.java
	agent/jvm/src/test/java/org/jolokia/jvmagent/client/util/VirtualMachineHandlerTest.java