COMPOSE: Display and edit an email's headers

Display the mailboxes in a side panel

File	Description
compose/attach.c	Compose Attachments
compose/attach_data.c	Compose Attach Data
compose/cbar.c	Compose Bar (status)
compose/cbar_data.c	Compose Bar Data
compose/compose.c	Compose Email Dialog
compose/config.c	Config used by libcompose
compose/env_data.c	Compose Envelope Data
compose/envelope.c	Compose Envelope
compose/shared_data.c	Compose Shared Data