add missing import

Author: tmorrell

ames/harvesters/__init__.py

@@ -18,6 +18,7 @@
 from .caltechauthors import get_request_id_title
 from .caltechauthors import get_publisher
 from .caltechauthors import get_authors
+from .caltechauthors import get_doi
 from .caltechauthors import classify_link
 from .caltechauthors import extract_https_links
 from .caltechauthors import clean_link