Restore version file and use it in gemspec.

After the VERSION file was removed in ca52137496, RestClient.version
would always return "0.0.0".

lib/restclient.rb

@@ -9,6 +9,7 @@ rescue LoadError => e
   raise LoadError, "no such file to load -- net/https. Try running apt-get install libopenssl-ruby"
 end
 
+require File.dirname(__FILE__) + '/restclient/version'
 require File.dirname(__FILE__) + '/restclient/exceptions'
 require File.dirname(__FILE__) + '/restclient/request'
 require File.dirname(__FILE__) + '/restclient/abstract_response'
@@ -103,12 +104,6 @@ module RestClient
     @@log = create_log log
   end
 
-  def self.version
-    version_path = File.dirname(__FILE__) + "/../VERSION"
-    return File.read(version_path).chomp if File.file?(version_path)
-    "0.0.0"
-  end
-
   # Create a log that respond to << like a logger
   # param can be 'stdout', 'stderr', a string (then we will log to that file) or a logger (then we return it)
   def self.create_log param

lib/restclient/version.rb

@@ -0,0 +1,7 @@
+module RestClient
+  VERSION = '1.7.0.alpha' unless defined?(self::VERSION)
+
+  def self.version
+    VERSION
+  end
+end

rest-client.gemspec

@@ -1,8 +1,10 @@
 # -*- encoding: utf-8 -*-
 
+require File.expand_path("../lib/restclient/version", __FILE__)
+
 Gem::Specification.new do |s|
   s.name = 'rest-client'
-  s.version = '1.7.0.alpha'
+  s.version = RestClient::VERSION
   s.authors = ['REST Client Team']
   s.description = 'A simple HTTP and REST client for Ruby, inspired by the Sinatra microframework style of specifying actions: get, put, post, delete.'
   s.license = 'MIT'