update version number in setup.py

Author: Roelof Rietbroek

setup.py

@@ -26,7 +26,7 @@
     name="geoslurp",
     author="Roelof Rietbroek",
     author_email="[email protected]",
-    version="2.0.0",
+    version="2.1.1",
     description="Python postgreSQL-PostGIS client for managing earth science datasets",
     long_description=long_description,
     long_description_content_type="text/markdown",