Lots of tiny bug fixes.
Fixed the production listing for seasons.
Better support for sticky productions in production listings.
Merge commit 'e637c894d674c1e063817b4b72c26799400d1542' into v0.4

Conflicts:
	codekit-config.json
	css/style.css
	functions/wpt_productions.php
	functions/wpt_widget.php
	raw/less/style.less
Killed more PHP warnings.
Updated Dutch translations.
Small bug fixes.
Updated readme.txt.