[V0.10] Allow compatible clients to skip channel join messages #2182

Job	Run time
code formatting check	20s
cppcheck	4m 15s
min features with gcc	2m 24s
min features with g++	2m 16s
min features with clang	2m 25s
max features with gcc	3m 2s
max features with g++	2m 35s
max features with clang	3m 32s
max features with gcc and DEBUG	2m 47s
max features with gcc for 32-bit arch (legacy OS)	1m 50s
max features with g++ for 32-bit arch (legacy OS)	1m 50s
max features with clang for 32-bit arch (legacy OS)	1m 43s
	28m 59s

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