update README and project configuration

Author: emmanvg

CHANGES.txt

@@ -1,3 +1,7 @@
+Version 4.1.0.16
+2019-09-17
+- [#96] Fix problem when installing from Python 2.7
+
 Version 4.1.0.15
 2019-09-06
 - Update project requirements

setup.cfg

@@ -1,2 +1,11 @@
+[bumpversion]
+current_version = 4.1.0.15
+parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+).(?P<release>\d+)
+serialize = {major}.{minor}.{patch}.{release}
+commit = True
+tag = True
+
+[bumpversion:file:maec/version.py]
+
 [bdist_wheel]
 universal = True