LP#1717025 - make Specific Due Dates Until Logout in Patron Checkout

LP#1717025 - make Specific Due Dates Until Logout in Patron Checkout

Made a few (opinionated) changes, that try to follow some JS
best practices. Changed Bool flags like date_options.sticky_date
to has_sticky_date, which avoids confusion with the checkoutArgs
property of the same name, and provides a clue about it's type
and function. Also added semicolons to any JS statements and
function expressions that were missing them.

Signed-off by: Cesar Velez <cesar.velez@equinoxinitiative.org>

Signed-off-by: Mike Rylander <mrylander@gmail.com>