Modify UserPageServlet (add cheking user or admin), validate
CreateCategoryServlet, modify adminProfile
Load avatar part
zoom
validation in user room
some changes
no change
Merge branch 'reka' into Pavlo

Conflicts:
	BuyIt/WebApp/jsp/adminProfile.jsp
	BuyIt/src/main/java/com/epam/lab/buyit/controller/web/servlet/CreateCategoryServlet.java
Merge remote-tracking branch 'origin/aleg' into Reka-left

Conflicts:
	BuyIt/WebApp/WEB-INF/web.xml
	BuyIt/src/main/java/com/epam/lab/buyit/controller/web/servlet/UserPageServlet.java
Add buttons blocking in item_preview.jsp when current user is product
seller.
Change time show, change productPage
Merge remote-tracking branch 'origin/reka' into chemodurov
add error 500 page
Add confirmations on productPage.jsp
Merge remote-tracking branch 'origin/reka' into chemodurov
Merge with reka
Update product-page-button-cheker.js and productPage.jsp
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