Implemented versioning by version.txt

MANIFEST.in

-include LICENSE README.rst bootstrap.py buildout.cfg requirements.txt
+include LICENSE README.rst bootstrap.py buildout.cfg requirements.txt version.txt
 recursive-include doc conf.py *.rst
 recursive-include bob *.h *.cpp
 recursive-include bob/ap/data *.wav

setup.py

@@ -12,7 +12,7 @@ from bob.blitz.extension import Extension, Library, build_ext
 from bob.extension.utils import load_requirements
 build_requires = load_requirements()
 
-version = '2.0.0a0'
+version = open('version.txt').read().rstrip()
 
 setup(
 

version.txt

+2.0.0a3