Release 0.0.2

- All the APIs for top level but unbind (bind, listen, relaunch_config, clipboard_contents, focused_window, visible_windows, all_windows, main_screen, all_screens, running_apps, alert, log, choose_from, update_settings
)
- New api for window (title, set_frame, set_top_left, set_size, frame, top_left, size, maximize, minimize, un_minimize, app, screen)
- New api for screen (frame_including_dock_and_menu, frame_without_dock_or_menu)
- Travis CI