Read export flag from piCtory for watchdog output

The watchdog output on a revpi connect will be set as exported, if you
set the export flag in pictory.

setup.py

@@ -17,7 +17,7 @@ setup(
 
     license="LGPLv3",
     name="revpimodio2",
-    version="2.5.10",
+    version="2.6.0a0",
 
     packages=["revpimodio2"],
     python_requires="~=3.2",