updated elasticsearch and logstash to 1.6 and 1.5 respectively
updated elasticsearch and logstash to 1.6 and 1.5 respectively

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