setup: change entry points, update classifiers

related to #466 #360
diff --git a/setup.py b/setup.py
index 9b5b73b..2aee8b1 100644
--- a/setup.py
+++ b/setup.py
@@ -85,18 +85,23 @@
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.2',
-        'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Topic :: Communications',
         'Topic :: Software Development :: Libraries',
         'Topic :: Software Development :: Libraries :: Python Modules',
         'Topic :: Terminals :: Serial',
     ],
     platforms='any',
-    scripts=['serial/tools/miniterm.py'],
+    entry_points = {
+        'console_scripts': [
+            'pyserial-miniterm=serial.tools.miniterm:main',
+            'pyserial-ports=serial.tools.list_ports:main'
+        ],
+    },
     extras_require = {
         'cp2110': ['hidapi'],
     },