Put 'Expand/collapse details' link on the same line as top progressbar; make progressbar clickable

Pick notes: Some changes were required due to code being moved in the past.

Conflicts:
	pootle/static/css/style.css
	pootle/static/js/common.js
	pootle/templates/translation_projects/overview.html
Make folders bold

Conflicts:
	pootle/templates/core/table.html