i06t02: Spidercrab system integration

* Description:
    * Integration with Ocean Don Corleone
        *  8b86f02 Merge integration fixes — Konrad Talik
        *  0800daa Spidercrab _check_and_pull_config() from Corleone
    * Integration with tagging module (database labels, ...?)
        * 54118fb NotYetTagged label for Content nodes
* Time: 3 h
    * Some minor delays related to `don_utils.py`

Merging this request would close issue #105.