Use version gem

Rakefile

@@ -1,6 +1,9 @@
 require "bundler/gem_tasks"
-require "rspec/core/rake_task"
 
+require "rspec/core/rake_task"
 RSpec::Core::RakeTask.new(:spec)
 
+require 'rake/version_task'
+Rake::VersionTask.new
+
 task :default => :spec

lib/ucd.rb

@@ -1,6 +1,7 @@
-require "ucd/version"
+require "version"
 require "ucd/parser"
 require "ucd/formatter/graphviz"
 
 module UCD
+  is_versioned
 end

lib/ucd/interface/command_line.rb

@@ -23,10 +23,6 @@ def output_path=(value)
         @output_path = Pathname.new(value.to_s)
       end
 
-      def verbose=(value)
-        @verbose = !!value
-      end
-
       def paths=(values)
         @paths = values.to_a.map { |path| Pathname.new(path) }
       end
@@ -95,7 +91,6 @@ def setup_parser
           end
           parser.on("-t", "--type VALUE", "The output format type") { |value| @formatter.type = value }
           parser.on("-o", "--output VALUE", "The output path") { |value| self.output_path = value }
-          parser.on("-v", "--verbose", "Run verbosely") { |value| self.verbose = value }
           parser.on("-h", "--help", "Prints this help") do
             puts parser
             puts <<~HELP

ucd.gemspec

@@ -1,11 +1,11 @@
 # coding: utf-8
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require "ucd/version"
+require "ucd"
 
 Gem::Specification.new do |spec|
   spec.name          = "ucd"
-  spec.version       = UCD::VERSION
+  spec.version       = UCD::VERSION.to_s
   spec.authors       = ["Ryan Scott Lewis"]
   spec.email         = ["[email protected]"]
 
@@ -26,4 +26,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "bundler", "~> 1.13"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.0"
+  spec.add_development_dependency "version", "~> 1.0.0"
 end