Updated WineHQ.org

[Jeremy Newman]

I have updated the WineHQ.org main website with a new mobile friendly 
(bootstrap based) theme.

The goal was the preserve the old look somewhat, while bringing it up to 
modern standards.

I've ported most of the existing translations for the home page. 
Sub-pages will need to be updated.

Translators, please update your sub-pages. Please update 
download.template first.

-N