ace validator: fix app annotations validation.
ace validator: fix app annotations validation.

The runtimeApp annotations were merged over themself and not over the image
manifest annotations.

appc/spec,jonboulle/spec,squeed/spec,dgonyeo/spec,squeed/spec,appc/spec,appc/spec,jonboulle/spec,squeed/spec,dgonyeo/spec,jonboulle/spec,dgonyeo/spec