Allow PKG_NAME env variable to control the directory name used when 'rake dev'...

Allow PKG_NAME env variable to control the directory name used when 'rake dev' is used to generate a new rails app.
Signed-off-by: NMichael Koziarski <michael@koziarski.com>
[#3278 state:committed]

railties/Rakefile

@@ -9,7 +9,7 @@ require 'rbconfig'
 require File.join(File.dirname(__FILE__), 'lib/rails', 'version')
 
 PKG_BUILD       = ENV['PKG_BUILD'] ? '.' + ENV['PKG_BUILD'] : ''
-PKG_NAME        = 'rails'
+PKG_NAME        = ENV['PKG_NAME'] || 'rails'
 PKG_VERSION     = Rails::VERSION::STRING + PKG_BUILD
 PKG_FILE_NAME   = "#{PKG_NAME}-#{PKG_VERSION}"
 PKG_DESTINATION = ENV["RAILS_PKG_DESTINATION"] || "../#{PKG_NAME}"