.Merge branch 'master' of ssh://git.nguyen.vg/hacks/simpleWebSlides

* 'master' of ssh://git.nguyen.vg/hacks/simpleWebSlides:
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  Make the print preview only fire when the presentation is finished rendering.
  Make the presentation have the correct aspect ratio even when the window has a smaller aspect ratio. Sanitize the generic CSS.
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  WIP
  Fix titles with & inside.
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  Change the psud theme.
  Make help more visible.
  Update.