gnu: ruby-nokogumbo: Move "build-gemspec" phase after "unpack".

* gnu/packages/ruby.scm (ruby-nokogumbo)[arguments]: Move
"build-gemspec" phase after "unpack".

gnu: ruby: Remove string-append call with single argument.

* gnu/packages/ruby.scm (ruby)[source]: Remove string-append.

gnu: ruby-concurrent: Adjust for 'replace-git-ls-files'.

* gnu/packages/ruby.scm (ruby-concurrent)[arguments]: Adjust for new build
phase 'replace-git-ls-files'.

gnu: ruby-arel: Update to 7.1.1.

* gnu/packages/ruby.scm (ruby-arel): Update to 7.1.1.

gnu: ruby-simplecov: Update to 0.12.0.

* gnu/packages/ruby.scm (ruby-simplecov): Update to 0.12.0.

gnu: ruby-gherkin3: Rename to ruby-gherkin and update to 4.0.0.

* gnu/packages/ruby.scm (ruby-gherkin3): Rename to ruby-gherkin and update to
4.0.0.
(ruby-cucumber-core)[propagated-inputs]: Adjust accordingly.

gnu: ruby-rspec: Update to 3.5.0.

These packages should be updated together.

* gnu/packages/ruby.scm (ruby-rspec): Update to 3.5.0.
(ruby-rspec-core): Update to 3.5.0.
(ruby-rspec-mocks): Update to 3.5.0.
(ruby-rspec-expectation): Update to 3.5.1.
(ruby-rspec-support): Update to 3.5.0.

gnu: ruby-rack: Update to 2.0.1.

* gnu/packages/ruby.scm (ruby-rack): Update to 2.0.1.
[source]: Use GitHub and patch.
[native-inputs]: Add ruby-concurrent, ruby-minitest, ruby-minitest-sprint,
which.  Remove ruby-bacon.
[propagated-inputs]: Add ruby-concurrent.
* gnu/packages/patches/ruby-rack-ignore-failing-test.patch: New file.
* gnu/local.mk: Add it.

gnu: ruby-concurrent: Remove dependencies.

ruby-timecop and ruby-yard will links in a circular dependency chain after
ruby-rack is updated.

* gnu/packages/ruby.scm (ruby-concurrent)[arguments]: Remove
timecop-dependent tests.
[native-inputs]: Remove ruby-timecop, ruby-yard.

gnu: ruby-activesupport: Update to 5.0.0.

* gnu/packages/ruby.scm (ruby-activesupport): Update to 5.0.0.
[arguments]: Include the library as a test.
[propagated-inputs]: Add ruby-concurrent.  Remove ruby-thread-safe,
ruby-json.

gnu: ruby-puma: Update to 3.6.0.

* gnu/packages/ruby.scm (ruby-puma): Update to 3.6.0.
[arguments]: Add 'delete-integration-tests' phase.
(gnu/packages/patches/ruby-puma-ignore-broken-test.patch):
Remove only one broken test.

gnu: ruby-cucumber-core: Update to 1.5.0.

* gnu/packages/ruby.scm (ruby-cucumber-core): Update to 1.5.0.

gnu: ruby-ffi: Update to 1.9.14.

* gnu/packages/ruby.scm (ruby-ffi): Update to 1.9.14.

gnu: ruby-nokogiri: Update to 1.6.8.

* gnu/packages/ruby.scm (ruby-nokogiri): Update to 1.6.8.
[arguments]: Remove 'update-dependency' phase.  Add 'patch-extconf' phase.
[native-inputs]: Remove ruby-rake-compiler.
[propagated-inputs]: Add ruby-pkg-config.

gnu: Add ruby-pkg-config.

* gnu/packages/ruby.scm (ruby-pkg-config): New variable.

Merge branch 'master' into core-updates

gnu: Remove trailing periods from synopsis.

* gnu/packages/emacs.scm (emacs-smart-mode-line): Update synopsis.
* gnu/packages/gnustep.scm (wmfire): Update synopsis.
* gnu/packages/haskell.scm (ghc-socks): Update synopsis.
* gnu/packages/kde-frameworks.scm (oxygen-icons): Update synopsis.
* gnu/packages/openstack.scm (python-bandit): Update synopsis.
* gnu/packages/perl.scm (perl-test-trap): Update synopsis.
* gnu/packages/python.scm (python-backports-abc): Update synopsis.
* gnu/packages/ruby.scm (python-cryptography-vectors): Update synopsis.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

Merge branch 'master' into core-updates

gnu: Add ruby-puma.

gnu/packages/ruby.scm (ruby-puma): New variable.
gnu/packages/patches/ruby-puma-ignore-broken-test.patch: New file.
gnu/local.mk (dist_patch_DATA): Add it.

gnu: Add ruby-hoe-git.

* gnu/packages/ruby.scm (ruby-hoe-git): New variable.