[chef] Impending foodcritic v5.0.0 release

[Lamont Granquist < >]

Heads up that I'll be releasing foodcritic 5.0.0 today sometime after 
lunch (US/Pacific)

The ChangeLog is here:

https://github.com/acrmp/foodcritic/blob/master/CHANGELOG.md

Note that per the deciderating at the community meeting today that FC054 
will be reverted again before release and included in a later release 
after we can support optional foodcritic rules better ( 
https://github.com/acrmp/foodcritic/pull/358#issuecomment-141147044 ).  
This has not been done yet and is also an after-lunch item to do.

The reason for the 5.0.0 major version release is dropping support of 
ruby 1.9.3.  This is because foodcritic needs Chef-12 to test against 
and Chef-12 has dropped support for ruby 1.9.3, so ruby 1.9.3 had to be 
removed from the travis matrix.  Since we no longer test against 1.9.3 
we cannot guarantee that it works against 1.9.3 so it was dropped in the 
foodcritic.gemspec as well:

https://github.com/acrmp/foodcritic/pull/315
https://github.com/acrmp/foodcritic/pull/377

This may affect users of Chef 11.x on old rubies and old rubygems. Users 
on omnibus chef 11.18.12 use ruby 1.9.3 with a recent enough rubygems 
(the last 2.1.x that we can upgrade chef-11 users to before native gem 
installs suffer a breakage) will simply see that 'gem install 
foodcritic' will remove 5.0.0 from the solution set and install 4.0.0 
and they will be pinned to that version--nothing should change for 
them.  Users which are on ruby 1.9.3 and on very old rubygems (certainly 
1.8.24 is buggy this way) and which do not use a Gemfile.lock or other 
explicit pin to 4.0.0 will see that it attempts to install v5.0.0 and 
will fail as soon as the gem goes live -- unfortunately there's no way 
to mitigate that breakage. Users need to upgrade chef and/or upgrade 
ruby and/or upgrade rubygems and/or pin with a Gemfile.lock and/or pin 
with a semver ~> 4.0 in your Gemfile/gemspec (and certainly those last 
two are always considered best practice and everyone /should/ be doing 
one of them in order to avoid any breakage).

The biggest reason to upgrade to 5.0.0 is most likely that FC009 has 
been updated with up-to-date 12.4.1 and 11.18.x DSL metadata and the 
node.force_override/force_default bug has been fixed so that FC009 
should be substantially more accurate and useful now.