[retro-gtk] Created tag 0.16.1

[Adrien Plazas <aplazas src gnome org>]

The unsigned tag '0.16.1' was created.

Tagger: Adrien Plazas <kekun plazas laposte net>
Date: 1552296374 +0100

    Version 0.16.1

Changes since the last tag '0.16.0':

Adrien Plazas (5):
      Add CSS names to the widgets
      tests: Fix a license header filename
      tests: Fix an error naming error
      environment: Bufferize the single audio frames
      Version 0.16.1

Alexander Mikhaylenko (3):
      keyboard-key: Add key_to_val_converter()
      input: Add retro_input_get_keyboard()
      core-view: Implement keyboard controller capability