Only allow BEL to terminate OSC, not AP or PM.
Accept the EUC-JP charset.
Allow CP437 as an explicitly specified string encoding.
Increment received and sent "packet tags" for GCDAsyncSocket.
Fixed a crash if prompt detection attempts to detect a prompt on a line composed entirely of space characters.
Re-wrote -maybeDisplayBufferedStringAsPrompt to be easier to read and have less duplicated code.
Ignore valid 3-byte terminal codes of the form ESC C0 C1.