Cap dependencies for 2.2.10

When installed from scratch on 2.2.10 with RubyGems 2.3.10 and Bundler
1.17.3, with RAILS_VERSION set to `5-2-stable`:

    childprocess-3.0.0 requires ruby version >= 2.3.0, which is incompatible with the current version, ruby 2.2.10p489
    xpath-3.2.0 requires ruby version >= 2.3, which is incompatible with the current version, ruby 2.2.10p489
    i18n-1.8.3 requires ruby version >= 2.3.0, which is incompatible with the current version, ruby 2.2.10p489
    nio4r-2.5.2 requires ruby version >= 2.3, which is incompatible with the current version, ruby 2.2.10p489
    rack-2.2.3 requires ruby version >= 2.3.0, which is incompatible with the current version, ruby 2.2.10p489
    public_suffix-4.0.5 requires ruby version >= 2.3, which is incompatible with the current version, ruby 2.2.10p489
    rubyzip-2.3.0 requires ruby version >= 2.4, which is incompatible with the current version, ruby 2.2.10p489

    sprockets-4.0.2 requires ruby version >= 2.5.0, which is incompatible with the current version, ruby 2.2.10p489

We had sprockets capped, but only for `'~> x.x.x'`/`x.x.x` formats.

Author: pirj

Gemfile

@@ -79,9 +79,9 @@ end
 if RUBY_VERSION <= '1.8.7'
   # cucumber and gherkin require rubyzip as a runtime dependency on 1.8.7
   # Only < 1.0 supports 1.8.7
-  gem 'rubyzip', '< 1.0'
-else
-  gem "rubyzip", '>= 1.2.2'
+  gem 'rubyzip', '<= 1.0'
+elsif RUBY_VERSION < '2.4'
+  gem 'rubyzip', '>= 1.2.2', '< 2.0.0'
 end
 
 if RUBY_VERSION >= '2.0.0' && RUBY_VERSION < '2.2.0'

Gemfile-rails-dependencies

@@ -1,10 +1,5 @@
 version_file = File.expand_path("../.rails-version", __FILE__)
 
-# FIXME: rack 2.1.0 introduces a deprecation warning that rails is triggering,
-# but in later versions this warning will be removed. Get rid of this hack once
-# rack 2.1.0+ is out.
-gem 'rack', '!= 2.1.0'
-
 case version = ENV['RAILS_VERSION'] || (File.exist?(version_file) && File.read(version_file).chomp) || ''
 when /master/
   gem "rails", :git => "https://github.com/rails/rails.git"
@@ -49,20 +44,35 @@ else
     gem "puma"
   end
 
-  if RUBY_VERSION < "2.5"
-    gem "sprockets", "~> 3.0"
-  end
-
   if version.gsub(/[^\d\.]/,'').to_f >= 6.0
     gem "activerecord-jdbcsqlite3-adapter", "~> 60.0.rc1", :platforms => [:jruby]
   else
     gem 'activerecord-jdbcsqlite3-adapter', :platforms => [:jruby]
   end
 end
 
+gem "childprocess", '< 2.0.0' if RUBY_VERSION < '2.3'
+
 if RUBY_VERSION < '1.9.3'
   gem "i18n", '< 0.7.0'
 elsif RUBY_VERSION < '2.3.0'
   gem "i18n", '< 1.5.2'
 end
+
+gem "nio4r", '< 2.4.0' if RUBY_VERSION < '2.3'
+
+gem "public_suffix", '< 4.0.0' if RUBY_VERSION < '2.3'
+
+# rack 2.1.0 introduces a deprecation warning that rails is triggering,
+# but in later versions this warning is removed.
+if RUBY_VERSION < '2.2'
+  gem "rack", '< 2.0.0', '!= 2.1.0'
+elsif RUBY_VERSION < '2.3'
+  gem "rack", '< 2.2.0', '!= 2.1.0'
+end
+
+gem "sprockets", '~> 3.0' if RUBY_VERSION < '2.5'
+
 gem "test-unit" if RUBY_VERSION >= '2.2.0' && version =~ /3[.-]2[.-]/
+
+gem "xpath", '< 3.2.0' if RUBY_VERSION < '2.3'