Enable vendor multi-window implementations
Enable vendor multi-window implementations

Before official support in Android N, LG and Samsung both implemented their own multi-window support, but it requires an explicit opt-in.
cketti/k-9,k9mail/k-9,k9mail/k-9,cketti/k-9,k9mail/k-9,cketti/k-9,cketti/k-9