delete master files
Revert "delete master files"

This reverts commit 52d4dbb674c0b3bcae9ec0b5d4c9c752ca547cdd.
test
delete master files
Revert "delete master files"

This reverts commit 52d4dbb674c0b3bcae9ec0b5d4c9c752ca547cdd.
test
Merge commit 'f17d3851a2550467dccdc581857c777cddea134e' into dev
test
add dev3
remove dev1 and dev2
add master3
remove dev1 and dev2
add master3
Merge commit '080564178cb32f348518348041f8f3b7705a51d4'