zone:zone.c add #define DEBUG
dlock.c:add and hide #define DEBUG
zone:fix bug of  选项文字布局
zone:option span css
zone:span css : lang(en)
zone:更换了option文字的先后顺序
lowpower add
CMakeLists.txt:add lowpower
makefile:delete some common coffee unuseful
greeter:update makefile
lowpower:update rgba 0.5-->1.0
osd:TIME_HIDE update
greeter:update user.coffee: use some function from common/js background.coffee;theme.coffee;new UserInfo(@id,name-->@username)  ; @username-->@username_div
greeter:user.coffee:@userinfo_show_index--->@current_user_index; UseInfo.focus: add _current_user = @; and hide password ENTER check if _current_user.username is @username
powermenu:add menuCHoose_click_cb
menuchoose.coffee:update set_current
desktopmenu:add update_current_icon\set_currentuser_session\menuChoose_click_cb; de_current_id-->menu_current_id
powermenu.coffee update
menuchoose:fix bug of greeter界面点击电源选项后，下次开机时desktopmenuhover的text是上次的电源选项
fix bug of 对于已登陆的用户，不显示桌面环境切换