Bump version to v0.15.3-dev and update What's New page

Author: edschofield

docs/whatsnew.rst

@@ -5,6 +5,14 @@ What's New
 
 .. _whats-new-0.15.x:
 
+What's new in version 0.15.3 (2015-02-...)
+==========================================
+
+This is a minor bug-fix release:
+
+- Fix ``newbytes`` constructor bug (issue #163)
+
+
 What's new in version 0.15.2 (2015-09-11)
 =========================================
 

src/future/__init__.py

@@ -88,7 +88,7 @@
 __copyright__ = 'Copyright 2013-2015 Python Charmers Pty Ltd'
 __ver_major__ = 0
 __ver_minor__ = 15
-__ver_patch__ = 2
-__ver_sub__ = ''
+__ver_patch__ = 3
+__ver_sub__ = '-dev'
 __version__ = "%d.%d.%d%s" % (__ver_major__, __ver_minor__,
                               __ver_patch__, __ver_sub__)