Update setup.py

new option added:
- `allow_duplicates`: `false`  # remove source links repetitions

setup.py

@@ -6,7 +6,7 @@
 
 setup(
     name='uglypy',  # The package name on PyPI
-    version='0.0.16',  # Initial version, update manually for major changes
+    version='0.0.17',  # Initial version, update manually for major changes
     author='Fabrizio Salmi',
     author_email='[email protected]',  # Replace with your email
     description='A Python package for aggregating and processing RSS feeds with LLM-enhanced content rewriting.',