Bug 571283 - Allow LF LF instead of CRLF CRLF as header/body separator

	Bug 571283 - Allow LF LF instead of CRLF CRLF as header/body separator

	* libsoup/soup-message-io.c (read_metadata): Change how this
	works; instead of taking a boundary string, just always pass "\n"
	as the boundary to soup_socket_read_until(), but call it multiple
	times if the caller wants us to read until a blank line.
	(io_read): update to deal with the fact that the headers might be
	terminated by LF LF rather than CRLF CRLF.

svn path=/trunk/; revision=1253