Add a utility function for executing promises with constrained concurrency
Add a utility function for executing promises with constrained concurrency

shiftkey/desktop,kactus-io/kactus,artivilla/desktop,desktop/desktop,artivilla/desktop,kactus-io/kactus,say25/desktop,j-f1/forked-desktop,artivilla/desktop,desktop/desktop,shiftkey/desktop,say25/desktop,artivilla/desktop,say25/desktop,kactus-io/kactus,j-f1/forked-desktop,shiftkey/desktop,desktop/desktop,j-f1/forked-desktop,shiftkey/desktop,desktop/desktop,say25/desktop,kactus-io/kactus,j-f1/forked-desktop