Use # to concatenate service name to tubes caps URI
Use # to concatenate service name to tubes caps URI

Tweak tubes features to be like:
 http://telepathy.freedesktop.org/xmpp/tubes/stream#rfb
Rather than:
 http://telepathy.freedesktop.org/xmpp/tubes/stream/rfb

So we can put something at the http:// URI that talks about the
protocol.

This commit is the same as in telepathy-gabble
361575641a3132467e320a4484fea698ae3b935b

freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut