Add timer..
Clean productPage + Comments
Add methods to SubCategoryService and CategoryService
Changes in ProductService
add categoryViewer + href in Web.xml
Alot of js,css
Merge remote-tracking branch 'origin/reka' into chemodurov

Conflicts:
	BuyIt/WebApp/WEB-INF/web.xml
	BuyIt/WebApp/jsp/productPage.jsp
	BuyIt/src/main/java/com/epam/lab/buyit/controller/service/product/ProductServiceImpl.java
Add categoryViewerPage.jsp
Fix productPage.jsp quantity bug