Extract status reasons into separate file

This makes rubocop happy about class length. Probably this needs to be reported
to rubocop instead: Hash should be treated as a single line if it's a plain
Hash like this one.

On another hand, it's now possible to require reasons without Status class
definition, e.g. in reel.

/cc @sferik @tarcieri

lib/http/response/status.rb

@@ -1,5 +1,7 @@
 require 'delegate'
 
+require 'http/response/status/reasons'
+
 module HTTP
   class Response
     class Status < ::Delegator
@@ -46,71 +48,6 @@ def symbolize(str)
         end
       end
 
-      # Code to Reason map
-      #
-      # @example Usage
-      #
-      #   REASONS[400] # => "Bad Request"
-      #   REASONS[414] # => "Request-URI Too Long"
-      #   REASONS[418] # => "I'm a Teapot"
-      #
-      # @return [Hash<Fixnum => String>]
-      REASONS = {
-        100 => 'Continue',
-        101 => 'Switching Protocols',
-        102 => 'Processing',
-        200 => 'OK',
-        201 => 'Created',
-        202 => 'Accepted',
-        203 => 'Non-Authoritative Information',
-        204 => 'No Content',
-        205 => 'Reset Content',
-        206 => 'Partial Content',
-        207 => 'Multi-Status',
-        226 => 'IM Used',
-        300 => 'Multiple Choices',
-        301 => 'Moved Permanently',
-        302 => 'Found',
-        303 => 'See Other',
-        304 => 'Not Modified',
-        305 => 'Use Proxy',
-        306 => 'Reserved',
-        307 => 'Temporary Redirect',
-        308 => 'Permanent Redirect',
-        400 => 'Bad Request',
-        401 => 'Unauthorized',
-        402 => 'Payment Required',
-        403 => 'Forbidden',
-        404 => 'Not Found',
-        405 => 'Method Not Allowed',
-        406 => 'Not Acceptable',
-        407 => 'Proxy Authentication Required',
-        408 => 'Request Timeout',
-        409 => 'Conflict',
-        410 => 'Gone',
-        411 => 'Length Required',
-        412 => 'Precondition Failed',
-        413 => 'Request Entity Too Large',
-        414 => 'Request-URI Too Long',
-        415 => 'Unsupported Media Type',
-        416 => 'Requested Range Not Satisfiable',
-        417 => 'Expectation Failed',
-        418 => "I'm a Teapot",
-        422 => 'Unprocessable Entity',
-        423 => 'Locked',
-        424 => 'Failed Dependency',
-        426 => 'Upgrade Required',
-        500 => 'Internal Server Error',
-        501 => 'Not Implemented',
-        502 => 'Bad Gateway',
-        503 => 'Service Unavailable',
-        504 => 'Gateway Timeout',
-        505 => 'HTTP Version Not Supported',
-        506 => 'Variant Also Negotiates',
-        507 => 'Insufficient Storage',
-        510 => 'Not Extended'
-      }.each { |_, v| v.freeze }.freeze
-
       # Code to Symbol map
       #
       # @example Usage

lib/http/response/status/reasons.rb

@@ -0,0 +1,72 @@
+require 'delegate'
+
+module HTTP
+  class Response
+    class Status < ::Delegator
+      # Code to Reason map
+      #
+      # @example Usage
+      #
+      #   REASONS[400] # => "Bad Request"
+      #   REASONS[414] # => "Request-URI Too Long"
+      #   REASONS[418] # => "I'm a Teapot"
+      #
+      # @return [Hash<Fixnum => String>]
+      REASONS = {
+        100 => 'Continue',
+        101 => 'Switching Protocols',
+        102 => 'Processing',
+        200 => 'OK',
+        201 => 'Created',
+        202 => 'Accepted',
+        203 => 'Non-Authoritative Information',
+        204 => 'No Content',
+        205 => 'Reset Content',
+        206 => 'Partial Content',
+        207 => 'Multi-Status',
+        226 => 'IM Used',
+        300 => 'Multiple Choices',
+        301 => 'Moved Permanently',
+        302 => 'Found',
+        303 => 'See Other',
+        304 => 'Not Modified',
+        305 => 'Use Proxy',
+        306 => 'Reserved',
+        307 => 'Temporary Redirect',
+        308 => 'Permanent Redirect',
+        400 => 'Bad Request',
+        401 => 'Unauthorized',
+        402 => 'Payment Required',
+        403 => 'Forbidden',
+        404 => 'Not Found',
+        405 => 'Method Not Allowed',
+        406 => 'Not Acceptable',
+        407 => 'Proxy Authentication Required',
+        408 => 'Request Timeout',
+        409 => 'Conflict',
+        410 => 'Gone',
+        411 => 'Length Required',
+        412 => 'Precondition Failed',
+        413 => 'Request Entity Too Large',
+        414 => 'Request-URI Too Long',
+        415 => 'Unsupported Media Type',
+        416 => 'Requested Range Not Satisfiable',
+        417 => 'Expectation Failed',
+        418 => "I'm a Teapot",
+        422 => 'Unprocessable Entity',
+        423 => 'Locked',
+        424 => 'Failed Dependency',
+        426 => 'Upgrade Required',
+        500 => 'Internal Server Error',
+        501 => 'Not Implemented',
+        502 => 'Bad Gateway',
+        503 => 'Service Unavailable',
+        504 => 'Gateway Timeout',
+        505 => 'HTTP Version Not Supported',
+        506 => 'Variant Also Negotiates',
+        507 => 'Insufficient Storage',
+        510 => 'Not Extended'
+      }.each { |_, v| v.freeze }.freeze
+    end
+  end
+end