CFY-1185 fix schema according to changes
CFY-1185 fix includes
CFY-1185 prepand to path
CFY-1012 remove dependency links
CFY-1360 update agent package to install pyzmq and cloudify-script-plugin
Update provision.sh

Replace SCRIPT_PLUGIN_SHA with SCRIPTs_PLUGIN_SHA
Update provision.sh

Centos agent needd the plugin installer only