Changes since tag 1.90-beta

commit afb9d74986c5b233ad9e800d39e553486db76d1c
Author: Hendrik Leppkes <h.leppkes@gmail.com>
Date:   Mon Apr 30 00:46:00 2018 +0200

    Save the default floor after a lookup

commit 3e195fee915d4c551bd3e187797b01dfb85cc8e9
Author: Hendrik Leppkes <h.leppkes@gmail.com>
Date:   Sun Apr 29 21:49:48 2018 +0200

    Unify Migrate lookup api

commit a3ae0ab7db71669ecceee6fdd4d98c0ace4843dc
Author: Hendrik Leppkes <h.leppkes@gmail.com>
Date:   Sun Apr 29 21:28:51 2018 +0200

    Draft of HereBeDragons-Migrate migration helper library

commit 6dd6864b8679b35ded1978d3e9a86eda6042be7e
Author: Hendrik Leppkes <h.leppkes@gmail.com>
Date:   Sun Apr 29 19:02:31 2018 +0200

    Add a draft of HereBeDragons-Pins-2.0

