Bump version to 2.47, add 2.48 version macros
soup-session, soup-connection: update handling of "ssl" flag

Store all SoupSessionHosts with a URI using either "http" or "https"
as the scheme. Then we don't need to explicitly tell SoupConnection
whether the connection is SSL or not, since it can figure it out from
the URI.
soup-connection: don't disconnect the connection on dispose

In the normal case, SoupSession will do it itself, and in other cases
it might not be wanted.

https://bugzilla.gnome.org/show_bug.cgi?id=721343
soup-message-queue: minor fix

SoupMessageQueueItem's priority field is not private to
soup-message-queue.c.
soup-message-io: slight tweak to callback/error handling

Let the callback know whether I/O completed on the message, and move
the server-side "disconnect on I/O error" code from soup-message-io to
soup-server.