Allow to start over with new blockchain #61 #63
Allow to start over with new blockchain #61 #63

On subsequent calls to `run-scenario.yaml`, `geth`'s blockchaindata
will be wiped, in order to avoid issues with prior runs on the same
host set.

tomashaber/raiden,charles-cooper/raiden,tomashaber/raiden,charles-cooper/raiden,tomashaber/raiden,tomashaber/raiden,tomaaron/raiden,tomaaron/raiden,tomashaber/raiden,tomaaron/raiden,hackaugusto/raiden,tomaaron/raiden,hackaugusto/raiden