[INTERNAL] fixed bug in PicoContainer

The PicoContainer could not resolve annotation bindings in child
containers that are defined in the parent container.

Change-Id: I5e08d1abb575526d4a8d063bb2c1ef760393e508
Reviewed-on: http://saros-build.imp.fu-berlin.de/gerrit/1237
Tested-by: Jenkins CI
Reviewed-by: Stefan Rossbach <srossbach@arcor.de>