install salt in centos 6.5

from : http://docs.saltstack.cn/topics/development/hacking.html#installing-for-development

virtualenv salt

pip install M2Crypto    # Don't install on Debian/Ubuntu (see below)
pip install pyzmq PyYAML pycrypto msgpack-python jinja2 psutil futures tornado
pip install -e ./salt   # the path to the salt git clone from above

pip install salt