Product List

Added function to add ships on date if item is preorder.
Product List shipping latency

Time needs to be adjusted to calculate Eastern time, however:
If product is set to "Ship Today by 12 Noon EST" shipping message will
now check for current time and if past noon on M - Th set message to
"Ships Next Business Day", and if current time is after noon on Friday,
or anytime on Sat or Sun set the message to Ships Monday by 12 Noon EST.