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.

Add smem package

Smem is a memory profiling tool that uses proportial set sizes to give a more
useful measurement of memory usage in virtual memory systems.

Tested as working on XE500C13-K01US.

This reverts commit af7735b8.

It has a bunch of extra features...  Binary package for x86_64 included

Add wget package

Update README.md