bump version. next one will be 3.7

CHANGES.rst

@@ -2,8 +2,8 @@
 Changelog
 =========
 
-3.6.3 (unreleased)
-------------------
+3.7 (unreleased)
+----------------
 
 - For components with ``ignore_exceptions`` set to ``True``, mark unparseable
   lines as broken instead rising a ``ValueError``. ``VEVENT`` components have

setup.py

@@ -3,7 +3,7 @@ import setuptools
 import sys
 
 
-version = '3.6.3.dev0'
+version = '3.7.dev0'
 shortdesc = 'iCalendar parser/generator'
 longdesc = codecs.open('README.rst', encoding='utf-8').read()
 longdesc += codecs.open('CHANGES.rst', encoding='utf-8').read()