Updated: setup (2.895)

[Jon Turney]

A new version of Setup (2.895) has been uploaded to:

   https://cygwin.com/setup-x86.exe     (32 bit version)
   https://cygwin.com/setup-x86_64.exe  (64 bit version)

Changes compared to 2.893:

- Drag setup into the 1990s, by replacing the custom-drawn package 
chooser with a ListView common control.

-- Use standard UI elements to choose an action to take on a package or
category, rather than the weird UX of clicking to cycle around a list of
options of undisclosed length.

-- Behaviour change: previously, a category action only affected 
packages which matched any name search filter applied.  Now all packages 
contained by the category are affected.

-- Category view now shows a count of packages in a category

-- Add long description as a tooltip for description

-- Package selection can now be done via keyboard (crudely)

- Add support for ZStandard compression for packages and .ini files

- Fix a new warning reported by gcc 8

- Avoid a potential crash when checking for cached packages
   Addresses: https://cygwin.com/ml/cygwin/2018-10/msg00033.html

- Use pkgconfig for build prerequisite checking

- Fix log spam when package vendor is something other than "cygwin"

- Various cleanups

Thanks to Ken Brown and Achim Gratz for help and patches.

Please send bug reports, as usual, to the public mailing list cygwin AT 
cygwin DOT com.