Comment 0 for bug 490935

I sometimes badly miss "Change subject" function that would allow me to change
the subject of given mails (mostly "received" ones). This very handy if someone
sent something you want to keep in the mailbox, but he forgot to put a subject,
or the subject does not reflect the state or reason why you kept this mail.
Having "Change subject" would finally let me avoid using VI agains mailboxes ;)