version bumped CZMQ and libsodium as 0.4.5 is no longer on the server

* Version bumped CZMQ to 2.2.0 
* libsodium 0.4.5 is no longer on the download server: https://download.libsodium.org/libsodium/releases/
So version bumped libsodium to libsodium to 1.0.0