class Build::Environment
def self.system_environment(env = ENV)
def self.system_environment(env = ENV) self.new(nil, Hash[env.map{|key, value| [key.downcase.to_sym, value]}]) end
def self.system_environment(env = ENV) self.new(nil, Hash[env.map{|key, value| [key.downcase.to_sym, value]}]) end