Specifically ask for Telepathy 0.x

Telepathy 1.0 will not be compatible, and will probably require
source changes. telepathy-glib 0.12 and telepathy-logger 0.2 are
the 0.x ABIs (they were the first stable-branches to have g-i).

Bug: https://bugzilla.gnome.org/show_bug.cgi?id=721704
Reviewed-by: Giovanni Campagna