fix api docs post txt -> rst rename

docs/Makefile

@@ -58,9 +58,9 b' html: api'
 	@echo
 	@echo "Build finished. The HTML pages are in build/html."
 
-api: source/api/generated/gen.rst
+api: source/api/generated/gen.txt
 
-source/api/generated/gen.rst:
+source/api/generated/gen.txt:
 	python autogen_api.py
 	@echo "Build API docs finished."
 

docs/autogen_api.py

@@ -58,9 +58,9 b" if __name__ == '__main__':"
                                            r'\.testing\.mkdoctests']
     # Now, generate the outputs
     docwriter.write_api_docs(outdir)
-    # Write index with .rst extension - we can include it, but Sphinx won't try
+    # Write index with .txt extension - we can include it, but Sphinx won't try
     # to compile it
-    docwriter.write_index(outdir, 'gen.rst',
+    docwriter.write_index(outdir, 'gen.txt',
                           relative_to = pjoin('source','api')
                           )
     print ('%d files written' % len(docwriter.written_modules))

docs/source/api/index.rst

@@ -9,4 +9,4 b''
    :Release: |version|
    :Date: |today|
 
-.. include:: generated/gen.rst
+.. include:: generated/gen.txt