Moved runtime.LockOSThread() to urtrator.go.

cache/cache_servers.go

@@ -85,7 +85,6 @@ func (c *Cache) FlushServers(data map[string]string) {
         }
     }
 
-    Database.Unlock()
     tx := Database.Db.MustBegin()
     fmt.Println("Adding new servers...")
     if len(new_servers) > 0 {
@@ -102,7 +101,6 @@ func (c *Cache) FlushServers(data map[string]string) {
     }
 
     tx.Commit()
-    Database.Lock()
     fmt.Println("Done")
 }