merged origin/master into NotficationCenter

...lias/basic/2019.2/data/example_contract/CONTRACT_1001.xml

...lias/basic/2019.2/data/example_contract/CONTRACT_1002.xml

...lias/basic/2019.2/data/example_contract/CONTRACT_1003.xml

...lias/basic/2019.2/data/example_contract/CONTRACT_1004.xml

...Data_alias/basic/2019.2/data/example_offer/OFFER_1000.xml

...Data_alias/basic/2019.2/data/example_offer/OFFER_1001.xml

...Data_alias/basic/2019.2/data/example_offer/OFFER_1002.xml

...Data_alias/basic/2019.2/data/example_offer/OFFER_1003.xml

...Data_alias/basic/2019.2/data/example_offer/OFFER_1004.xml

...sic/2019.2/data/example_organisation/ORGANISATION_gfk.xml

.../data/example_organisation/ORGANISATION_kaeltetechnik.xml

...2/data/example_organisation/ORGANISATION_lichtenstein.xml

...sic/2019.2/data/example_organisation/ORGANISATION_mnf.xml

....2/data/example_organisation/ORGANISATION_pichelmaier.xml

...alias/basic/2019.2/data/example_person/PERSON_gruener.xml

...alias/basic/2019.2/data/example_person/PERSON_kanzler.xml

..._alias/basic/2019.2/data/example_person/PERSON_leicht.xml

..._alias/basic/2019.2/data/example_person/PERSON_lustig.xml

..._alias/basic/2019.2/data/example_person/PERSON_muller.xml

...ias/basic/2019.2/data/example_person/PERSON_obermeier.xml