bernardo/LabChain @ ee6ee093e1ca628a1383499c122a550552cf2fc6

Malte Kraus ee6ee093e1 remove all `prev_block` parameters		8 lat temu
..
__init__.py	9985148595 basic mining and sending money seems to work now	8 lat temu
test_proto.py	ee6ee093e1 remove all `prev_block` parameters	8 lat temu
test_verifications.py	ee6ee093e1 remove all `prev_block` parameters	8 lat temu
utils.py	2f345e1c39 add many more verification tests	8 lat temu