Rename and fix json frog library in SDK

tools/create_sdk.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 #
 # A script which will be invoked from gyp to create an SDK. 
 #
 # Usage: create_sdk.py sdk_directory
 #
@@ skipping 191 matching lines @@
   for target_dir in [html_dest_dir, htmlimpl_dest_dir]:
     copytree(join(html_src_dir, 'src'), join(target_dir, 'src'),
              ignore=ignore_patterns('.svn'))
     copytree(join(html_src_dir, 'generated'), join(target_dir, 'generated'),
              ignore=ignore_patterns('.svn'))
 
 
   #
   # Create and populate lib/json.
   #
-
-  json_frog_dest_dir = join(LIB, 'json', 'frog')
+  json_dest_dir = join(LIB, 'json')
   json_compiler_dest_dir = join(LIB, 'json', 'compiler')
-  os.makedirs(json_frog_dest_dir)
+  os.makedirs(json_dest_dir)
   os.makedirs(json_compiler_dest_dir)
 
   for filename in json_frog_sources:
     copyfile(join(HOME, 'frog', 'lib', filename), 
-             join(json_frog_dest_dir, filename))
+             join(json_dest_dir, filename))
 
   for filename in json_compiler_sources:
     copyfile(join(HOME, 'compiler', filename),
              join(json_compiler_dest_dir, os.path.basename(filename)))
 
-  # Create json_compiler.dart and json_frog.dart from whole cloth.
+  # Create json_compiler.dart from whole cloth.
   dest_file = open(join(LIB, 'json', 'json_compiler.dart'), 'w')
   dest_file.write('#library("dart:json");\n')
   dest_file.write('#import("compiler/json.dart");\n')
   dest_file.close()
-  dest_file = open(join(LIB, 'json', 'json_frog.dart'), 'w')
-  dest_file.write('#library("dart:json");\n')
-  dest_file.write('#import("frog/json.dart");\n')
-  dest_file.close()
       
   #
   # Create and populate lib/dom.
   #
   dom_src_dir = join(HOME, 'client', 'dom')
   dom_dest_dir = join(LIB, 'dom')
   os.makedirs(dom_dest_dir)
 
   for filename in os.listdir(dom_src_dir):
     src_file = join(dom_src_dir, filename)
@@ skipping 128 matching lines @@
   UTIL = join(SDK_tmp, 'util')
   os.makedirs(UTIL)
 
   copytree(join(HOME, 'utils', 'dartdoc'), join(UTIL, 'dartdoc'), 
            ignore=ignore_patterns('.svn'))
 
   move(SDK_tmp, SDK)
 
 if __name__ == '__main__':
   sys.exit(Main(sys.argv))