userpage password messages
userpage changeinformation js validation
comments jsp and servlet
restore page jsp and servlet
improve some bugs and add normal tables with scroll
Merge remote-tracking branch 'origin/aleg' into chemodurov

Conflicts:
	BuyIt/WebApp/WEB-INF/web.xml
	BuyIt/WebApp/bootstrap/css/userpage.css
	BuyIt/WebApp/jsp/sidebarMenu.jsp
	BuyIt/src/main/java/com/epam/lab/buyit/controller/service/description/DescriptionServiceImpl.java
	BuyIt/src/main/java/com/epam/lab/buyit/controller/service/product/ProductServiceImpl.java
	BuyIt/src/main/java/com/epam/lab/buyit/controller/web/servlet/ChangePasswordServlet.java