only add the filter if there are guids to filter against
only add the filter if there are guids to filter against

hpcloud/cloud-foundry-client-js,18F/cloud-foundry-client-js,morikat/cloud-foundry-client-js,hpcloud/cloud-foundry-client-js,18F/cloud-foundry-client-js,morikat/cloud-foundry-client-js,ActiveState/cloud-foundry-client-js,ActiveState/cloud-foundry-client-js