Update Exchange statuses, revert instead of emmitting event on fill/cancel failures, and remove redundant logic in matchOrders

packages/contracts/test/asset_proxy/authorizable.ts

@@ -19,6 +19,7 @@ describe('Authorizable', () => {
     let notOwner: string;
     let address: string;
     let authorizable: MixinAuthorizableContract;
+
     before(async () => {
         await blockchainLifecycle.startAsync();
     });