Add --disable-dependency-tracking and --disable-debug configure options

Update config.guess and config.sub so aarch64 is detected correctly

Add wget package

Update README.md

Change copyright from 2013 to 2017. Gotta bring Chromebrew into the future!

Wget is a network utility to retrieve files from the Web.

Tested as working on XE500C13-K01US.

Update protobuf hash

Add kore package

Kore is an easy to use, scalable web application framework for writing web APIs
in C.

Tested as working on XE500C13-K01US.

Fix htop+protobuf dependencies for build only

Add mdp package

Add brotli package

Mdp is a command-line based markdown presentation tool.

Tested as working on XE500C13-K01US.

Brotli is a generic-purpose lossless compression algorithm from Google.

Tested as working on XE500C13-K01US.

Add GPG pinentry

These do make sense, I hadn't tested it without the gnupg package installed,
which already includes these.

Update cmake from 3.9.1 to 3.9.3

Update libgcrypt from 1.7.6 to 1.8.1

This is a bugfix and maintenance release.

Tested as working on XE500C13-K01US. All tests pass on x86_64.

Update libgpgerror from 1.26 to 1.27

This is a bugfix and maintenance release.

Tested as working on XE500C13-K01US. All tests pass on x86_64.

Update gnupg from 2.1.22 to 2.2.1

This is a bugfix and maintenance release.

Tested as working on XE500C13-K01US. All tests pass on x86_64.

Update libxslt from 1.1.29 to 1.1.30

This is a bugfix and maintenance release.

Tested as working on XE500C13-K01US.

Update memcached from 1.5.1 to 1.5.2

This is a bugfix and maintenance release.

Tested on XE500C13-K01US. All tests pass on x86_64.

Update xxhash from 0.6.2 to 0.6.3

This is a maintenance release.

Tested as working on XE500C13-K01. Test suite passes on x86_64.