Set IS_RELEASED to True

Author: mdickinson

setup.py

@@ -22,7 +22,7 @@
 MINOR = 3
 MICRO = 1
 PRERELEASE = ""
-IS_RELEASED = False
+IS_RELEASED = True
 
 # If this file is part of a Git export (for example created with "git archive",
 # or downloaded from GitHub), ARCHIVE_COMMIT_HASH gives the full hash of the