f8edbd1f45 Add Arbitrary to Weight (yancy)
Pull request description:
Adds Arbitrary to the Weight type. I had meant to add this with the initial Arbitrary PR but I overlooked it.
ACKs for top commit:
tcharding:
ACK f8edbd1f45
Kixunil:
ACK f8edbd1f45
Tree-SHA512: b886f78285b5cd06b2531a1e53272cad623a8e43e76e8108abe90668b45d00674b6a867c5ff980ee7f0a34919e1d6bb534624bd0bc67a53c8c9a41ea2ed504e8