added travis-ci status
added travis-ci status

Fewbytes/cosmo-celery-common-pending-delete,isaac-s/cloudify-plugins-common,codilime/cloudify-plugins-common,isaac-s/cloudify-plugins-common,codilime/cloudify-plugins-common,isaac-s/cloudify-plugins-common,cloudify-cosmo/cloudify-plugins-common,codilime/cloudify-plugins-common,xdegenne/cloudify-plugins-common,cloudify-cosmo/cloudify-plugins-common,geokala/cloudify-plugins-common,cloudify-cosmo/cloudify-plugins-common