[enh] release 0.7

CHANGELOG

 Changelog
 =========
-0.7 (unreleased)
-------------------
+0.7 (2018-08-21)
+----------------
 - fix line continuation https://github.com/PyCQA/baron/pull/92 by ibizaman
 - handle corrupt cache file situation https://github.com/PyCQA/baron/pull/76 by ryu2

setup.py

@@ -12,7 +12,7 @@ except ImportError:
 setup(name='baron',
-      version='0.6.6',
+      version='0.7',
       description='Full Syntax Tree for python to make writing refactoring code a realist task',
       author='Laurent Peuch',
       long_description=read_md("README.md") + "\n\n" + open("CHANGELOG", "r").read(),