iOS harness: stop tap_xy reporting phantom successes; add pixel sampling for colour - #80

iOS harness: stop tap_xy reporting phantom successes; add pixel sampling for colour#80

GenericJam wants to merge 4 commits into

masterGenericJam/mob:masterfrom

fix/ios-test-harness-honestyGenericJam/mob:fix/ios-test-harness-honestyCopy head branch name to clipboard