[KARAF-2240] Fix Equinox version and system packages
[KARAF-2279] Upgrade to OSGi Core 5.0.0
[KARAF-2177] Upgrade to Felix Framework 4.2.1

git-svn-id: https://svn.apache.org/repos/asf/karaf/trunk@1477932 13f79535-47bb-0310-9956-ffa450edef68