Remove old comment
Remove unused code
Set non-default show/hide parameters
Set 'open' function for calendar tooltips
Send category_id for each release to the release calendar
Add links to categories in release calendar
Capitalize location type in release calendar tooltips
Style tooltip close buttons in release calendar
Add close buttons to release calendar tooltips
Reformat whitespace
Alphabetize rules
Fix bug in "N days away" calculation

Previously, a release happening tomorrow could sometimes be displayed as
"in 0 days" instead of "tomorrow"