18.0 Release!

Whats new:
* Added offline sales support (Must use https AND enable in store config)
* Added option to select quick cash amount by double clicking cash payment button for quicker sales
* Can now send daily closeout reports via email
* Added comment field to damaged items report
* Can now disable items from price rules in bulk
* Can now sell gift cards that already exist to add value to them
* Removed employee's last name from receipt
* Added deleted/voided to receiving receipt
* Added option Only count store account payments to reports --> payments --> summary
* Added cost and selling price to damaged items report
* Added serial number history reports (Reports --> Items --> Serial Number History)
* Add store config preference "Items Per Search Suggestion" (Default to items per page)
* Minor fixes and improvements