app_main: explicitly load needed requires

Signed-off-by: Oleg Verych <olecom@gmail.com>
config: rework items of app modules in UI App.cfg

config = {
modules:{
  userman:{
    extjs:{
      wes:{
      // this in UI: `App.cfg.modules.userman.extjs.wes.timeout`
        timeout: 7777777,
        defer: 77777
}}}}}

Signed-off-by: Oleg Verych <olecom@gmail.com>
pingback: allow + warn if no auth module is used

If unauthorized but configured send empty component
with HTTP status 200. Otherwise status = 401 will break `Ext.Loader`.

Signed-off-by: Oleg Verych <olecom@gmail.com>