code: public String getContentTypeWithVersion() {
  		if (!StringUtils.hasText(this.contentTypeTemplate)
  				|| !StringUtils.hasText(this.version)) {
  			return "";
  		}
  		return this.contentTypeTemplate.replaceAll(VERSION_PLACEHOLDER_REGEX,
  				this.version);
  	}
docs: Function that will replace the placeholder
  {@link ZookeeperDependency#VERSION_PLACEHOLDER_REGEX} from the
  {@link ZookeeperDependency#contentTypeTemplate} with value from
  {@link ZookeeperDependency#version}.
  <p/>
  <p>
  e.g. having:
  <li>contentTypeTemplate: {@code 'application/vnd.some-service.$version+json'}</li>
  <li>version: {@code 'v1'}</li>
  </p>
  <p/>
  the result of the function will be {@code 'application/vnd.some-service.v1+json'}
  @return content type template with version