[IMP] point_of_sale: make the floor plan background fit the floor
[FIX] l10n_ro: changed module author as requested in issue 621105
[ADD] website & website_forum: social share links

adds a link to easily share forum posts on social networks.

website: a simple share link in a popover

website_forum: a modal encouraging people to share after posting on the forum should be available, and a bootstrap message should allow people to 'bump' a question to the top list (when ordered by activity date) if the message hasn't been answered and is older than 10 days (the modals and bootstrap message are website_forum specific)