API change: Rename xkb_map_* and group -> layout Move xkb_map_* functions to xkb_keymap_*, xkb_key_* functions under either xkb_keymap or xkb_state, and rename groups to layout in all user-visible API. Backwards-compatible hooks are provided, such that old source will build, but silently mangled to the new names, and old binaries will also continue to work. Signed-off-by: Daniel Stone <daniel@fooishbar.org>