Fix minor issues in credit listing (fixes #109)

• Change the name separator from hyphen (-) to star (★), which is the separator used for later episodes.
• Added a few missing spaces around the name separators.
• Removed leading and trailing spaces on some of the lines, for better alignment.
• Rewrapped a few incorrectly wrapped lines.
• Rewrapped all credit paragraphs to better fit the background graphics.
• Removed a few incorrect spaces in the English and Norwegian Bokmål versions.