Merge branch 'update_to_460' #69

Job	Run time
build (base)	7m 1s
build (clang)	8m 52s
build-gcc-heli	7m 28s
autotest-heli (sitltest-heli)	13m 53s
autotest (sitltest-copter-tests1a)	11m 46s
autotest (sitltest-copter-tests1b)	13m 44s
autotest (sitltest-copter-tests1c)	16m 2s
autotest (sitltest-copter-tests1d)	13m 8s
autotest (sitltest-copter-tests1e)	13m 9s
autotest (sitltest-copter-tests2a)	13m 11s
autotest (sitltest-copter-tests2b)	32m 36s
	2h 30m 50s

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