WEBUI: Cosmetic change icon

-DVR changed icon download

http://www.softicons.com/business-icons/flatastic-icons-part-4-by-custom-icon-design/download-icon
-upcoming/current rec changed icon

http://www.softicons.com/system-icons/oxygen-icons-by-oxygen/actions-view-calendar-upcoming-days-icon
-changed icon Abort for round style

http://www.softicons.com/toolbar-icons/flatastic-icons-part-1-by-custom-icon-design/delete-circle-icon