Merge branch 'nanocurrency:develop' into qt_state_open #8

Job	Run time
macOS [UBSAN] [lmdb \| clang]	34m 52s
macOS [ASAN] [lmdb \| clang]	29m 55s
macOS [TSAN] [lmdb \| clang]	32m 56s
Linux [UBSAN] [lmdb \| clang]	39m 30s
macOS [UBSAN] [rocksdb \| clang]	41m 28s
macOS [ASAN] [rocksdb \| clang]	39m 23s
macOS [TSAN] [rocksdb \| clang]	49m 35s
Linux [ASAN] [lmdb \| clang]	42m 25s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	43m 12s
Linux [TSAN] [lmdb \| clang]	40m 45s
Linux [LEAK] [lmdb \| clang]	40m 8s
Linux [UBSAN] [rocksdb \| clang]	51m 56s
Linux [ASAN] [rocksdb \| clang]	55m 37s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	1h 1m 31s
Linux [LEAK] [rocksdb \| clang]	55m 24s
	10h 58m 37s

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