[enh] bugfix release 0.6.4

CHANGELOG

 Changelog
 =========
+0.6.4 (2017-01-14)
+------------------
+
+- fix regression in case a comment follow the ":" of a if/def/other
+
 0.6.3 (2017-01-02)
 ------------------

setup.py

@@ -12,7 +12,7 @@ except ImportError:
 setup(name='baron',
-      version='0.6.3',
+      version='0.6.4',
       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(),