[PAXWEB-738] - Directory browsing is not working from contextHandler in
jetty.xml (8.1.14.v20131031) with karaf 3.0.0

Conflicts:
	pax-web-itest/pax-web-itest-container/pax-web-itest-container-jetty/src/test/java/org/ops4j/pax/web/itest/jetty/JettyConfigurationIntegrationTest.java
	samples/jetty-config-fragment/src/main/resources/jetty.xml