With so many scare stories about the tide of Bulgarians and Romanians heading to Britain in January 2014, it’s worth recalling that before the Iron Curtain was torn apart, both countries were even more shrouded in mystery than they are today. This was certainly true of the footballing world, with any trip to Bulgaria or Romania treated as a journey into the unknown. Clubs from Eastern Europe were invariably tagged as “the disciplined East Germans”, the “mighty Magyars” and of course, the “crack Bulgarians”. Cunning and strong Today, Bulgarian teams are less problematical than the feral dogs that roam Sofia at will. You’re only likely to bump into them, the teams that is, in the Europa League. But there was a time when outfits…