Merge pull request #22 from mdt0093/master

Merge pull request #21 from mdt0093/wait-staff
Updating the waitstaff screen.
Added ability for waitstaff to comp or uncomp items and, easily change the check number for any item.
Wait staff can now complete payment for checks.  This sets the item_paid field to one for all items on the check.  Also the waitstaff screen show table-paid status based on if there are any items that are un-paid for the table
Fixed an bug where multiple checks for a table may have been displayed out of order.  Now check numbers are always displayed in sequential order
Merge pull request #27 from mdt0093/wait-staff

I am merging everything into master, but not merging master into your branch once I am done with that.