tls: s/1024/2048/, to reflect current Best Practices

(note that most SSL providers have forced the reissuance of 1024-bit SSL certs in 2013)
port465: added port 465 TLS listener

added port 465 to "require AUTH"
server: consoldiated duplicate callback
Merge pull request #558 from msimerson/port465

added port 465 TLS listener
Merge pull request #561 from msimerson/tls

tls: s/1024/2048/, to reflect current Best Practices
connection: fix improper remove_header path
connection: s/transaction.header.add_header/transaction.add_header/