Add preinstall and patch functions to package.rb

Update libxslt from 1.1.30 to 1.1.32

This is a bugfix and maintenance release.

Tested as working on Samsung Chromebook Plus (aarch64).

Add intltool package

Update coreutils from 8.27 to 8.28

Update libxml2 from 2.9.5 to 2.9.6

This is a bugfix and maintenance release that mostly addresses memory
leak problems.

Tested as working on Samsung Chromebook Plus (aarch64).

Remove outdated binaries from emacs

Remove sudo from crew commands in glibc package

emacs requires ncurses to run

Fix markdown issues in README.md

Update postgres from 9.5.0 to 9.6.5

Update README.md to include crew files command

- Remove mention of armv7l binaries for aarch64
- Update install line to handle Y/n prompts
- Add optional curl install line
- Hash commands for clarity

Add perl_xml_parser package

Update aria2 from 1.32.0 to 1.33.0

This is a general bugfix and maintenance release.

Tested as working on Samsung Chromebook Plus (aarch64).

Use Ruby ENV for libgcrypt build

This fixes issues with building libgcrypt on aarch64 without manually setting an environment variable. See #1346.

Add cdargs package

Add speexdsp package

Update php7 from 7.1.8-1 to 7.1.11

Update php5 from 5.6.31-1 to 5.6.32

Add collectl package

Update emacs from 25.1 to 25.3

Add dfc package

Update gawk from 4.1.4-1 to 4.2.0

This is a major release and contains a large number of fixes, new
features, and changes to behavior.

Tested as working on Samsung Chromebook Plus (aarch64).

Add binclock package

Add include option in make for libpstat

Update manpages from 4.12 to 4.13

Add crew install buildessential to install.sh

Add rlwrap package