Improve building python modules
Remove useless BUILD_ARGS in pyzmq
Add libyaml
Make pyyaml a python module
Add msgpack-python
Add a PIP_WHEEL shortcut
Add pyyaml and msgpack-python to python
Add salt-master spk
Merge remote-tracking branch 'upstream/develop' into develop
Force shellinabox to always use certificate.pem as SSL certificate
Add missing openssl dependency for shellinabox
Use shellinabox update 20c3fe612e to disable compromised SSL versions
Change shellinabox app to redirect to HTTPS by default