added output div for debugging
need to set both el.style.display and el.style.visibility to visible/hidden to hide show divs. emit 'newKey' when a new key is added. handle 'addKeyToList' event to add keys to existing list
add a 'Populate key list with keys' button to the example
emit 5 'addKeyToList' events with ssh keys to populate the existing keys list
typo: appendChild not apendChild
append the new key to #output in the example
all forms need ev.preventDefault() so they don't get submitted
added readme