Factor download functionality out of export()
This way any kind of data can be offered as downloadable file.
Patch by: Sverre Rabbelier
.panel_wrapper div.current {
height: 290px;
}
#id, #style, #title, #dir, #hreflang, #lang, #classlist, #tabindex, #accesskey {
width: 200px;
}
#events_panel input {
width: 200px;
}