History entry, compatibility decl.

HISTORY.txt

@@ -1,3 +1,13 b''
+
+1.3.0
+~~~~~~~~~~~~
+
+#33 Python3-based Mercurial installs are supported and should work -
+including sharing passwords with Python2 installations.
+
+Note: remember about installing proper keyring backend dependencies
+under py3 (like python-dbus). Those aren't shared!
+
 
 1.2.1
 ~~~~~~~~~~~~

setup.py

@@ -29,6 +29,8 b' setup('
         'Intended Audience :: Developers',
         'License :: DFSG approved',
         'License :: OSI Approved :: BSD License',
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 3',
         'Operating System :: OS Independent',
         'Topic :: Software Development :: Libraries',
         'Topic :: Software Development :: Libraries :: Python Modules',