WUI: Updated resource loading

- In order to load all resources also for devMode, loading
  of CSS and images was changed.

  They are now part of ClientBundle and must me injected to
  page when module requires it (CSS, images).

  FavIcons are base64 encoded in HTML page for local loading.

- Allow to build production profile from parent pom.xml
  using "-Dproduction" parameter.

- Fixed language recognition if browser returns stuff like cs-cz.