rc2 for v1.1

This is a release candidate rc2 towards v1.1, it solves the following issues:

#31 #32 #33 #34 #35 #36

as a side note, the previous rc1 solves issues #6 #15 #23 #25 #27 #28 #29 #30
in summary all issues with the black tag (implem dev)