Bump version to 1.2.1. (#4)

- Bug fix for not including README.md in MANIFEST.in which cause error during pip install.

MANIFEST.in

@@ -1,4 +1,5 @@
 include CONTRIBUTING.md
 include LICENSE-IMAGE.md
 include LICENSE.md
+include README.md
 include ThirdPartyNotices.txt

setup.py

@@ -20,7 +20,7 @@ def readme():
 
 setup(
     name='cognitive_face',
-    version='1.2.0',
+    version='1.2.1',
     packages=find_packages(exclude=['tests']),
     install_requires=['requests'],
     author='Microsoft',