[KARAF-3404] Add a notion of profiles to karaf
[KARAF-3406] Upgrade to pax-url 2.2
[KARAF-3407] Upgrade to felix utils 1.6.2
[KARAF-3404] Add a demo for profiles
[KARAF-3405] Support for "mostly static" karaf instances
[KARAF-3410] Add a maven proxy servlet