Bump version to 0.6.0

Rakefile

@@ -27,7 +27,7 @@ end
 
 require 'yardstick/rake/verify'
 Yardstick::Rake::Verify.new do |verify|
-  verify.threshold = 47.3
+  verify.threshold = 48.8
 end
 
 task :default => [:spec, :rubocop, :verify_measurements]

lib/multi_xml/version.rb

@@ -1,3 +1,45 @@
 module MultiXml
-  VERSION = '0.5.5'.freeze unless defined?(MultiXML::VERSION)
+  module Version
+  module_function
+
+    # @return [Integer]
+    def major
+      0
+    end
+
+    # @return [Integer]
+    def minor
+      6
+    end
+
+    # @return [Integer]
+    def patch
+      0
+    end
+
+    # @return [Integer, NilClass]
+    def pre
+      nil
+    end
+
+    # @return [Hash]
+    def to_h
+      {
+        :major => major,
+        :minor => minor,
+        :patch => patch,
+        :pre => pre,
+      }
+    end
+
+    # @return [Array]
+    def to_a
+      [major, minor, patch, pre].compact
+    end
+
+    # @return [String]
+    def to_s
+      to_a.join('.')
+    end
+  end
 end

multi_xml.gemspec

@@ -15,5 +15,5 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
   spec.required_rubygems_version = '>= 1.3.5'
   spec.summary = 'A generic swappable back-end for XML parsing'
-  spec.version = MultiXml::VERSION
+  spec.version = MultiXml::Version
 end