Remove TODO.txt file in favor of linking to GitHub issue tracker.

README.rst

@@ -77,3 +77,6 @@ Limitations
 *Tesselate*, *Extrude* and *Altitude Mode* are assigned to a Geometry or
 Geometry collection (MultiGeometry). You cannot assign diffrent values of
 *Tesselate*, *Extrude* or *Altitude Mode* on parts of a MultiGeometry.
+
+You can find the complete list of current issues on `GitHub
+<https://github.com/cleder/fastkml/issues>`_.

docs/TODO.txt

-
-To Do
-======
-
-- add untyped custom data with namespace prefix
-- Overlays
-
-

setup.py

@@ -25,8 +25,7 @@ setup(
     description="Fast KML processing in python",
     long_description=(
         open("README.rst").read() + "\n" +
-        open(os.path.join("docs", "HISTORY.txt")).read() + "\n" +
-        open(os.path.join("docs", "TODO.txt")).read()
+        open(os.path.join("docs", "HISTORY.txt")).read()
     ),
     classifiers=[
         "Topic :: Scientific/Engineering :: GIS",