Reverted to zeromq 4.1.6, as 4.2.2 has some issues on iOS
Reverted to zeromq 4.1.6, as 4.2.2 has some issues on iOS

mworks/mworks,mworks/mworks,mworks/mworks,mworks/mworks,mworks/mworks,mworks/mworks,mworks/mworks,mworks/mworks,mworks/mworks