[KARAF-1598] Upgrade to pax-runner 1.7.6
[KARAF-1598] Upgrade to pax-runner 1.7.6

git-svn-id: 71d8a689455c5fbb0f077bc40adcfc391e14cb9d@1354994 13f79535-47bb-0310-9956-ffa450edef68

grgrzybek/karaf,grgrzybek/karaf,grgrzybek/karaf