Really remove Python 3.2 support

Author: digitalresistor

CHANGES.txt

@@ -1,6 +1,8 @@
 Next release
 ------------
 
+- Python 3.2 is no longer supported by Waitress.
+
 - FileBasedBuffer and more important ReadOnlyFileBasedBuffer no longer report
   False when tested with bool(), instead always returning True, and becoming
   more iterator like.

setup.py

@@ -57,7 +57,6 @@
         'Programming Language :: Python :: 2.6',
         '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',