Make stack-core--seconds-to-string more descriptive.
Make entities plist into a variable.
Trim unnecessary arg
Move " ago" out of stack--time-since
Make " ago" into a customizable varible.
Descriptive comments to stack-core--decode-entities
Turn stack-question-list-date-sort-method into a defcustom
Rename -date-sort to -date-more-recent-p
Make WINDOW optional in stack-question--display