[Illidan]

• Added a calendar for product releases. It can be accessed by clicking the "Products" link on the top left of the album calendar.
• Product release dates in searches are now links to the new product calendar.
• Added new vinyl size options: 5", 5½", 6", 6½". Removed 16".
• Added new vinyl RPM options for mixed side speeds.
• Fixed unspecified product dates in searches and recent products.
• Products without releases can now have song credits.
• Unit members linking is now more consistent with album linking, showing matches for names in kanji.
• Unicode spaces in non-advanced searches are replaced with normal ones, making it possible to search for artists copied from japanese sources more easily.
• Renamed "TV Special" to just "Special".
• It's no longer possible to delete an album with child albums.
• Fixed new PM popup redirecting to a wrong URL when browsing certain pages.