Merge pull request #124 from Tivoli/tivs/upgrade-ruby-2.2.4

Update ruby to version 2.2.4

packages/ruby-latest.rb

+require 'package'
+
+class RubyLatest < Package
+  version '2.2.4'
+  source_url 'https://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.4.tar.gz'
+  source_sha1 '818e5e157f76d4912ba3a7c7b4fc5156105e83c3'
+
+  depends_on 'readline'
+  depends_on 'zlibpkg'
+
+  def self.build
+    system "CC='gcc' ./configure"
+    system "make"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+end

packages/ruby.rb

@@ -8,7 +8,7 @@ class Ruby < Package
   })
   binary_sha1 ({
     i686: "49eeba5d542e4c3e6aa3686f215485e0946fb99a",
-    x86_64: "ec4d9c9d1a993ca03d0dee594c79ab1945e5b88d"
+    x86_64: "f1de1ef5ed690c3b78f4e40208a4fb93e227c4ed"
   })
 
   depends_on 'readline'