button check...
Merge remote-tracking branch 'origin/reka' into chemodurov

Conflicts:
	BuyIt/WebApp/jsp/productPage.jsp
Update UserSerializationAdapter, UserValidation, UserWebService
improve bugs
add product images
Update productPage.jsp
Merge remote-tracking branch 'origin/Reka-left' into chemodurov
Update ProductDAO and buy-confirmation.js
Update ProductDAO query
merge conflict