version bump

Author: nschloe

matplotlib2tikz/__about__.py

@@ -5,6 +5,6 @@
 __copyright__ = 'Copyright (c) 2010-2017, %s <%s>' % (__author__, __email__)
 __credits__ = []
 __license__ = 'License :: OSI Approved :: MIT License'
-__version__ = '0.6.12'
+__version__ = '0.6.13'
 __maintainer__ = u'Nico Schlömer'
 __status__ = 'Development Status :: 5 - Production/Stable'