By Ben Aris in Berlin A plane arrived in Ankara in the afternoon and disgorged the collective elite of Russia’s political prisoners, as the biggest swap since 1985 was completed in a landmark deal. Rumours that began yesterday, rapidly gelled into a newsmaker after some 16 people were released from Russian jails, pardoned and sent on their way for eight Russian prisoners, mostly cybercooks, a couple of spies and one assassin, were exchanged. Nothing has been officially confirmed yet. The Kremlin has yet to comment and the US have confirmed the exchange, but only in comments by an unnamed offic…