added timeout for sanity test vm connectivity
added timeout for sanity test vm connectivity

Cloudify-PS/cloudify-manager-blueprints,cloudify-cosmo/cloudify-manager-blueprints,isaac-s/cloudify-manager-blueprints,cloudify-cosmo/cloudify-manager-blueprints,isaac-s/cloudify-manager-blueprints,Cloudify-PS/cloudify-manager-blueprints