More keywords & classifier topics

Add more classifier information that is relevant
for taskflow to help more people locate what taskflow
is all about when they are browsing/searching pypi.

Change-Id: I0e6f435e980fca194c98b24b346205ecf8f1e7a7

setup.cfg

@@ -10,11 +10,12 @@ keywords = reliable recoverable execution
            tasks flows workflows jobs
            persistence states
            asynchronous parallel threads
+           dataflow openstack
 classifier =
     Development Status :: 4 - Beta
     Environment :: OpenStack
-    Intended Audience :: Information Technology
     Intended Audience :: Developers
+    Intended Audience :: Information Technology
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
     Programming Language :: Python
@@ -23,6 +24,8 @@ classifier =
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.3
+    Topic :: Software Development :: Libraries
+    Topic :: System :: Distributed Computing
 
 [global]
 setup-hooks =