Also pngcrush the sprites image.
Optimize some images further by using optipng instead of pngcrush.
Update the TODO list
country_redirect: Fix language detection when Accept-Language contains a full language code without the equivalent 'short' language code (en-US without en)
Translation update from Transifex
Add an Asturian version of the website.
Add Catalan translation to the website.
Add Portuguese translation to the website.