Icons Updated in SearchPeopleByProfession.jsp

1)- Added new 100x100 size, transparent icons of png format,
2)- Removed unwanted icons
3)- Each row contains 4 icons only,
4)- icons size changed through css.

Signed-off-by: manojsa <sawantmanojm@gmail.com>
Error pages for vanjari udyog vishwa

1)- created VUVExceptionController & get() method for all error pages.
2)- created error404.jsp & error500.jsp,
3)- In web.xml configured error pages entry.

Signed-off-by: manojsa <sawantmanojm@gmail.com>