Bump to version 1.1.3
Bump to version 1.1.3

Version 1.1.3 includes the following enhancements and bug fixes:

* Convert README to rst
* fix con::command() formatting
* fix searches to not crash when windows don't have the searched-for
property
* always set class properties
* get_bar_config() defaults to the first bar id
* add get_bar_config_list()
* fix dependencies in setup

chrsclmn/i3ipc-python,nicoe/i3ipc-python,acrisci/i3ipc-python,xenomachina/i3ipc-python