Bump version to 1.6.3

Author: arunkannawadi

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name='scholarly',
-    version='1.6.2',
+    version='1.6.3',
     author='Steven A. Cholewiak, Panos Ipeirotis, Victor Silva, Arun Kannawadi',
     author_email='steven@cholewiak.com, panos@stern.nyu.edu, vsilva@ualberta.ca, arunkannawadi@astro.princeton.edu',
     description='Simple access to Google Scholar authors and citations',