update to spec 0.19.11

Submitted by Simon McVittie

Assigned to Telepathy bugs list

Link to original bug (#29464)

Description

0.19.11 has some broken naming for an error (which I missed when reviewing/releasing), so please also apply this patch when updating to it:

http://git.collabora.co.uk/?p=telepathy-spec.git;a=commitdiff;h=78fa43292e24257802b7f43d6fe8b5f57bf38a8a

I believe all the changes should be picked up automatically by code generation, but I could be wrong.

Version: git master