bump tp-glib dep

Needed for newer TpAccountChannelRequest API.

https://bugzilla.gnome.org/show_bug.cgi?id=725070
use tp_account_channel_request_new_stream_tube()

https://bugzilla.gnome.org/show_bug.cgi?id=725070
use tp_account_channel_request_set_file_transfer_hash()

https://bugzilla.gnome.org/show_bug.cgi?id=725070
use tp_account_channel_request_set_sms_channel()

https://bugzilla.gnome.org/show_bug.cgi?id=725070
tp-chat: stop setting TargetHandleType: None

It's now down automatically by TpAccountChannelRequest.

https://bugzilla.gnome.org/show_bug.cgi?id=725070
use TpAccountChannelRequest Conference high level API

https://bugzilla.gnome.org/show_bug.cgi?id=725070