Prepare for 0.18.1 release

Author: jmadler

docs/whatsnew.rst

@@ -3,6 +3,12 @@
 What's New
 **********
 
+What's new in version 0.18.1 (2019-10-09)
+=========================================
+This is a minor bug-fix release containing a fix for raise_() 
+when passed an exception that's not an Exception (e.g. BaseException
+subclasses)
+
 What's new in version 0.18.0 (2019-10-09)
 =========================================
 This is a major bug-fix and feature release, including:

src/future/__init__.py

@@ -87,7 +87,7 @@
 __copyright__ = 'Copyright 2013-2019 Python Charmers Pty Ltd'
 __ver_major__ = 0
 __ver_minor__ = 18
-__ver_patch__ = 0
+__ver_patch__ = 1
 __ver_sub__ = ''
 __version__ = "%d.%d.%d%s" % (__ver_major__, __ver_minor__,
                               __ver_patch__, __ver_sub__)