Use karaf.etc everywhere
Revert "[KARAF-2874] Fix the features about xbean-asm*-shaded"

This reverts commit 905520399d94b00683b6ca0eca436b7495ed884b.
Revert "[KARAF-2874] Upgrade to xbean 3.17"

This reverts commit d48097de1b256d84217806efcf1e9f5d68434223.