tinymacro.el: Clean up comments

Signed-off-by: Jari Aalto <jari.aalto@cante.net>
tinymacro.el: Clean up install

Signed-off-by: Jari Aalto <jari.aalto@cante.net>
tinymacro.el: (tinymacro-keymap-function-bind-info): New. Remove tinylib

Signed-off-by: Jari Aalto <jari.aalto@cante.net>