Wait one block confirmation in tests #1511

Job	Run time
unit-tests	25m 51s
dependency-review	6s
administrator-test	26m 39s
circuits-test	28m 40s
client-authentication-test	22m 27s
adversary-test	38m 24s
eslint-check	2m 23s
ganache-erc1155-test	28m 7s
ganache-erc20-test	31m 56s
ganache-erc721-test	29m 52s
ganache-protocol-test	28m 30s
ganache-tokenisation-l2-test	30m 48s
general-tests	1m 41s
optimist-sync-test	25m 43s
x509-test	35m 12s
periodic-payment-test	1h 1m 31s
unit-test-circuits	7m 23s
ping-pong-test	29m 17s
check apps for liveliness	27m 16s
check gas transactions per block	44m 14s
	8h 46m 0s

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