Fix ReleaseConfig to expect next release is 4.6.1

Author: bdbaddog

ReleaseConfig

@@ -31,7 +31,7 @@
 # If the release type is not 'final', the patchlevel is set to the
 # release date.  This value is mandatory and must be present in this file.
 #version_tuple = (2, 2, 0, 'final', 0)
-version_tuple = (4, 7, 0, 'a', 0)
+version_tuple = (4, 6, 1, 'a', 0)
 
 # Python versions prior to unsupported_python_version cause a fatal error
 # when that version is used.  Python versions prior to deprecate_python_version