Bump to version 1.1.1

This version includes the following improvements:

* Python 2 support
* Support the `window_instance` container property
* Pep8 compliance code cleanup

setup.py

@@ -26,7 +26,7 @@
     # Versions should comply with PEP440.  For a discussion on single-sourcing
     # the version across setup.py and the project code, see
     # https://packaging.python.org/en/latest/development.html#single-sourcing-the-version
-    version='1.0.3',
+    version='1.1.1',
 
     description='An improved Python library for i3wm extensions',
     long_description=long_description,
@@ -57,6 +57,7 @@
 
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
+        'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.2',
         'Programming Language :: Python :: 3.3',
@@ -75,7 +76,7 @@
     # project is installed. For an analysis of "install_requires" vs pip's
     # requirements files see:
     # https://packaging.python.org/en/latest/technical.html#install-requires-vs-requirements-files
-    install_requires=['python3-xlib'],
+    install_requires=['python3-xlib', 'python-xlib', 'enum34'],
 
     # List additional groups of dependencies here (e.g. development dependencies).
     # You can install these using the following syntax, for example: