Update CHANGES.txt

CHANGES.txt

+Revision 3.5.0 (2015-06-10):
+
+    - Add support for 'async ...' and 'await' keywords introduced in
+      Python 3.5. Patch by Ihor Gorobets
+
 Revision 3.3.7 (2014-12-27):
 
     - Add support for Python 3 non-ASCII decorator names.

README.rst

 - Caleb Adamantine
 - `David Briscoe <https://github.com/idbrii>`_
 - `Elizabeth Myers <https://github.com/Elizafox>`_
+- `Ihor Gorobets <https://github.com/iho>`_
 - `Jeroen Ruigrok van der Werven <https://github.com/ashemedai>`_
 - `John Eikenberry <https://github.com/eikenb>`_
 - `Marc Weber <https://github.com/MarcWeber>`_

syntax/python.vim

 " Current Maintainer:   Dmitry Vasiliev <dima at hlabs dot org>
 " Previous Maintainer:  Neil Schemenauer <nas at python dot ca>
 " URL:                  https://github.com/hdima/python-syntax
-" Last Change:          2015-03-30
+" Last Change:          2015-06-10
 " Filenames:            *.py
-" Version:              3.3.7
+" Version:              3.5.0
 "
 " Based on python.vim (from Vim 6.1 distribution)
 " by Neil Schemenauer <nas at python dot ca>
 "   Caleb Adamantine
 "   David Briscoe
 "   Elizabeth Myers
+"   Ihor Gorobets
 "   Jeroen Ruigrok van der Werven
 "   John Eikenberry
 "   Marc Weber