fixed formatting
relocated dev mailing list modal code
changed ids

Changed some IDs to reflect mailing list name changes.
submit form with ajax

Changed form submission for subscription requests to protege-dev to go
through ajax.
clear form on cancel or close
changed value to placeholder
updated link to onto 101
relocated announce mailing list modal code
changed value to placeholder
submit form with ajax

Changed form submission to jquery and ajax.
clear form on cancel or close
added link to javadoc
content updates