Point __license__ to the copy in the repo

Although the original motivation to point to a common location made
some sense, I now think for maintainability and clarity, it's better
if __license__ points to the repo copy of the license.

Author: mhucka

module_name/__init__.py

@@ -22,8 +22,7 @@
 __url__         = 'https://github.com/caltechlibrary/%REPO_NAME%'
 __author__      = '%AUTHOR_NAME%'
 __email__       = 'helpdesk@library.caltech.edu'
-__license__     = 'https://data.caltech.edu/license'
-
+__license__     = 'https://github.com/caltechlibrary/%REPO_NAME%/blob/main/LICENSE'
 
 # Miscellaneous utilities.
 # .............................................................................