The first of five villagers who were trapped in a cave in Laos emerged on Friday night, after rescue workers pulled him out safely.  "The first victim has been successfully rescued out of the cave," a Thai rescue group said in a Facebook post.  A crowd greeted the man, who struggled to walk and had to be assisted by two rescue workers. He was then taken away for a medical check. It is the first extrication from the cave since the five men were found alive by divers on Wednesday. The villagers entered the cave last week in search of valuable minerals, but they were trapped inside by a flash flood that blocked their way out. Another villager who escaped in time managed to alert authorities that seven were left inside.  A crew of experts assembled to help the men in what has been a very complex mission.…