Build

Changelog and README updates for 1.7.0 #546

Job	Run time
Unit tests (1.22)	29s
Unit tests (1.23)	42s
Integration Tests with auth (1.22, 4.0.13, snappy, integration)	6m 3s
Integration Tests (1.22, 4.0.13, false, snappy, cassandra)	7m 28s
Integration Tests with auth (1.23, 4.0.13, snappy, integration)	5m 53s
Integration Tests (1.22, 4.0.13, false, snappy, integration)	4m 20s
Integration Tests (1.22, 4.0.13, false, snappy, ccm)	7m 34s
Integration Tests (1.22, 4.1.6, false, snappy, cassandra)	7m 36s
Integration Tests (1.22, 4.1.6, false, snappy, integration)	5m 50s
Integration Tests (1.22, 4.1.6, false, snappy, ccm)	6m 26s
Integration Tests (1.23, 4.0.13, false, snappy, cassandra)	5m 45s
Integration Tests (1.23, 4.0.13, false, snappy, integration)	9m 1s
Integration Tests (1.23, 4.0.13, false, snappy, ccm)	7m 0s
Integration Tests (1.23, 4.1.6, false, snappy, cassandra)	12m 35s
Integration Tests (1.23, 4.1.6, false, snappy, integration)	7m 18s
Integration Tests (1.23, 4.1.6, false, snappy, ccm)	6m 32s
	1h 40m 32s

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