Merge pull request #10 from iofirag/master

fix simpleDateFormat from "/" to "."
Merge pull request #11 from iofirag/master

fix expiredate & businessid & cookie in controller
Merge pull request #12 from iofirag/master

add business location create|update in adminPanel
added 'category' to class Coupon. adding a coupon with a category and updating a coupon works. coupon catgory gets selected automatically when updating.
Category works in site and in database. Added a designed home page
Fixed some litle bugs in index.jsp regarding user connection
everything works
fix expiredCoupons.jsp