[Snek] [keith-packard/snek] 6737c8: Switch to GPL 3

[Keith Packard]

  Branch: refs/heads/master
  Home:   https://github.com/keith-packard/snek
  Commit: 6737c8b1fc9ac487cb0a3dec517966d83984decc
      https://github.com/keith-packard/snek/commit/6737c8b1fc9ac487cb0a3dec517966d83984decc
  Author: Keith Packard <keithp at keithp.com>
  Date:   2019-04-18 (Thu, 18 Apr 2019)

  Changed paths:
    M COPYING
    M Makefile
    M examples/Makefile
    M examples/blink.py
    M examples/hanoi.py
    M examples/snek.py
    M examples/track-light.py
    M linux/Makefile
    M macosx/Makefile
    M macosx/build-mac
    M metro-snek/Makefile
    M metro-snek/altos.ld
    M metro-snek/ao-adc-samd21.c
    M metro-snek/ao-adc-samd21.h
    M metro-snek/ao-arch-funcs.h
    M metro-snek/ao-arch.h
    M metro-snek/ao-flash-samd21.c
    M metro-snek/ao-flash.h
    M metro-snek/ao-interrupt.c
    M metro-snek/ao-led.c
    M metro-snek/ao-led.h
    M metro-snek/ao-metro.c
    M metro-snek/ao-notask.c
    M metro-snek/ao-notask.h
    M metro-snek/ao-panic.c
    M metro-snek/ao-pins.h
    M metro-snek/ao-product.c
    M metro-snek/ao-serial-samd21.c
    M metro-snek/ao-serial.h
    M metro-snek/ao-snek.c
    M metro-snek/ao-snek.h
    M metro-snek/ao-stdio.c
    M metro-snek/ao-tc-samd21.c
    M metro-snek/ao-tc-samd21.h
    M metro-snek/ao-tcc-samd21.c
    M metro-snek/ao-tcc-samd21.h
    M metro-snek/ao-timer.c
    M metro-snek/ao-usb-samd21.c
    M metro-snek/ao-usb.h
    M metro-snek/ao.h
    M metro-snek/samd21.h
    M metro-snek/snek-altos.builtin
    M metro-snek/snek-altos.c
    M metro-snek/snek-eeprom.c
    M metro-snek/snek-gpio.c
    M metro-snek/snek.ld
    M posix/Makefile
    M posix/snek-curses.c
    M posix/snek-main.c
    M posix/snek-posix.builtin
    M posix/snek-posix.c
    M posix/snek-posix.h
    M posix/snek.1
    M snek-base.builtin
    M snek-builtin.c
    M snek-builtin.py
    M snek-code.c
    M snek-duino/Makefile
    M snek-duino/snek-duino-eeprom.c
    M snek-duino/snek-duino-install.1
    M snek-duino/snek-duino-serial.c
    M snek-duino/snek-duino.builtin
    M snek-duino/snek-duino.c
    M snek-duino/snek-duino.h
    M snek-error.c
    M snek-frame.c
    M snek-func.c
    M snek-gram.ll
    M snek-io.c
    M snek-io.h
    M snek-keyword.builtin
    M snek-lex.c
    M snek-list.c
    M snek-math.builtin
    M snek-math.c
    M snek-memory.c
    M snek-name.c
    M snek-parse.c
    M snek-poly.c
    M snek-print.c
    M snek-string.c
    M snek.h
    M snekde/Makefile
    M snekde/snekde.1
    M snekde/snekde.py
    M test/Makefile
    M test/andor.py
    M test/dict.py
    M test/equal_is.py
    M test/float.py
    M test/for-array.py
    M test/for-break.py
    M test/for-nested.py
    M test/for-range.py
    M test/for-string.py
    M test/global.py
    M test/if.py
    M test/list.py
    M test/math.py
    M test/op.py
    M test/range.py
    M test/slice.py
    M test/while-break.py
    M test/while-else.py
    M test/while.py
    M windows/Makefile
    M windows/altusmetrum.inf
    M windows/snek-windows.builtin
    M windows/snek-windows.c
    M windows/snek-windows.h

  Log Message:
  -----------
  Switch to GPL 3

Signed-off-by: Keith Packard <keithp at keithp.com>