attach rowNum to btn's tag.
set ud
check already exsist in bookmarked arr
implement toggle action
add bookmarkd view
show title at bookmark view controller
sort by latest bookmarked.
show minus.png at bookmarkViewController
make bookmarkedArray mutable
delete object from ud
work in progress
work
save to newsModel.bookmarkedArray.
toggle edit action
go to detailView from bookmarkedViewController.