Update units from 2.14 to 2.15

This is a bugfix and maintenance release.

Tested as working on Samsung Chromebook Plus (ARMv8).

Update sqlite from 3.20.1 to 3.21.0

This is a bugfix and maintenance release which includes several
security fixes found via fuzzing. All users should upgrade.

Tested as working on Samsung Chromebook Plus (ARMv8).

Add XWayland

Add clozure common lisp package

Adding elinks package

Clozure CL (often called CCL for short) is a free Common Lisp implementation
with a long history. Some distinguishing features of the implementation include
fast compilation speed, native threads, a precise, generational, compacting
garbage collector, and a convenient foreign-function interface.

Intel machines have both 32-bit and 64-bit versions available. ARM machines
currently only have a 32-bit version available. 64-bit for ARM is in
development.

Tested as working on Samsung Chromebook Plus (ARMv8).

This is more likely to stay up longer than my personal Gogs mirror.

Add Micro editor package

[compressdoc] Download single file instead of archive

We only require the shellscript named compressdoc but have been
downloading a 1.9M archive and then copying the file into our bin
directory.

This changes the behavior to download the one file that we need via
Github's raw user content service.

It also simplifies the installation to a single line using the install
command.

Add owl package

Owl is a purely functional implementation of Scheme.

Tested as working on Samsung Chromebook Plus (ARMv8).

Update curl from 7.56.0 to 7.56.1

This is a maintenance and bugfix release.

Tested as working on Samsung Chromebook Plus (aarch64).

Update libpng from 1.6.32 to 1.6.33

This is a bugfix and maintenance release.

Tested as working on XE500C13-K01US.

Update nginx from 1.13.5 to 1.13.6

This is a bugfix and maintenance release.

Tested as working on XE500C13-K01US.

fix build to match new ENV requirements, fix filecmd for configure

Add nping from the nmap suite - a network diagnostic tool.

Fix conflicting configure options

Both --enable-static and --disable-static were being passed to the configure script.

In addition to fixing this the following improvements were also made:

- sort dependencies alphabetically
- add readline support
- abstract prefix and libdir using constants
- fix quoting

Add package for ncat which is a 'netcat on steroids'

Update bacon from 3.5.4 to 3.6

This is a bugfix and maintenance release.

Tested as working on XE500C13-K01US.

Update curl from 7.55.1 to 7.56.0

This is a bugfix and maintenance release.

In addition to updating the package I've also:

- added an explicit --prefix
- disabled debug and other options useful for curl devs specifically
- reordered package dependencies to be alphabetical

Add ocaml package

OCaml is an industrial strength programming language supporting functional,
imperative and object-oriented styles.

Tested as working on XE500C13-K01US.