initial scrollto implementation

Conflicts:
	apps/files/css/files.css
	search/css/results.css
use places/folder icon, move link construction to JS, only show icon on hover, add title
use 'searchresult' as css class name, refactor scrollto code to filelist function, add filter/unfilter methods, highlight searched files in current filelist
fix cornercases, only filter when correct FileList is present