* The Makefile creates two packages:
  - chicken-scheme-interpreter, same that was created
    with the previous version of the Makefile (except
    that this one includs Chicken 5.2.0);
  - chicken-scheme-full, which includes the compiler,
    debugger, profiler, and module manager.

  The -full package has some peculiarities:
  It is somewhat large, although that is not really
  an issue, since it depends on gcc, which already needs
  more than 100Mb space.
  The binaries are not stripped, because stripped binaries
  seem to break the compiler (generated objects are not
  properly linked). Since the package is large and depends
  on an even larger one, this shouldn't be a problem.

Signed-off-by: Jeronimo Pellegrini <j_p@aleph0.info>

* version 5.1.0 of Chicken is out.
* Makefile goes from GPLv2 to GPLv3+
* other small enhancements to Makefile

Signed-off-by: Jeronimo Pellegrini <j_p@aleph0.info>

Signed-off-by: Jeronimo Pellegrini <j_p@aleph0.info>

Maintainer: myself ( Jeronimo Pellegrini <j_p@aleph0.info> )

Compile tested: compiles on x86_64, target mips (AR7xxx), OpenWRT master
  and OpenWRT 18.06.2
Run tested: on AR7xxx (TP-Link Archer C7 v.4)

Description:
This is an efficient Scheme interpreter, which comes with several
modules for networking, filesystem access, and other useful tasks.
It can be used as scripting language for automating tasks, by users
who prefer dynamic functional languages over imperative or
object-oriented ones.