Finalizing Python3 migration

With this patch, vim-emu is using Python3 as default installation
option.

Change-Id: I1238d1d4c96f641c90508ef20b44b88edbbb8222
Signed-off-by: peusterm <manuel.peuster@uni-paderborn.de>
diff --git a/setup.py b/setup.py
index c24498b..347dc16 100755
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
 from setuptools import setup, find_packages
 
 setup(name='emuvim',
-      version='6.0',
+      version='7.0',
       license='Apache 2.0',
       description='vim-emu: A NFV multi-PoP emulation platform',
       url='https://osm.etsi.org/gitweb/?p=osm/vim-emu.git',