Upgrade srupsen/logrus. #130

Job	Run time
Basic Checks	3m 40s
Unit Tests	5m 14s
Integration Tests (raft)	11m 6s
Integration Tests (pvtdata)	11m 5s
Integration Tests (pvtdatapurge)	4m 36s
Integration Tests (ledger)	11m 19s
Integration Tests (lifecycle)	3m 42s
Integration Tests (e2e smartbft)	19m 47s
Integration Tests (discovery gossip devmode pluggable)	4m 52s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	15m 54s
Integration Tests (sbe nwo msp)	6m 32s
	1h 37m 47s

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