Merge pull request #223 from nschloe/versionbump

version bump

Author: nschloe

matplotlib2tikz/__about__.py

@@ -6,6 +6,6 @@
     u'Copyright (c) 2010-2018, {} <{}>'.format(__author__, __email__)
 __credits__ = []
 __license__ = 'License :: OSI Approved :: MIT License'
-__version__ = '0.6.14'
+__version__ = '0.6.15'
 __maintainer__ = u'Nico Schlömer'
 __status__ = 'Development Status :: 5 - Production/Stable'