Fix nonce reset with epoch - #819

Fix nonce reset with epoch#819

andrew-fleming merged 10 commits into

OpenZeppelin:release/v0.3.0-alpha.1-rc.0OpenZeppelin/compact-contracts:release/v0.3.0-alpha.1-rc.0from

andrew-fleming:fix-l01-credit-nonce-epochandrew-fleming/compact-contracts:fix-l01-credit-nonce-epochCopy head branch name to clipboard