[#259] Add date to project update box

Also change the order of city and country, and add a title tag so both
are visible by mouse hovering when they are truncated.

The "by" is actually already in the code [here](https://github.com/akvo/akvo-web/blob/26aca79f9e0dfe988c88a0c70eee8e992ccd08c7/code/wp-content/themes/Akvo-responsive/functions.php#L207) so it just needs a css fix to make it visible.