Add rtd-specific syspath

docs/data/source/conf.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+#
+
+import sys, os
+
+on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
+
+if on_rtd:   # Add to syspath so RTD will find the common conf file
+    sys.path.append('../../../')
+
+from docs.shared.conf import *
+
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path.append('source/_templates')
+
+sys.path.insert(0, os.path.abspath('.'))
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path.append('source/_static')
+
+