#844 Run PurgeTask as repeating task and #784 write tests for PurgeTask

src/main/java/fr/xephi/authme/task/purge/PurgeExecutor.java

@@ -49,7 +49,7 @@ class PurgeExecutor {
      * players and names.
      *
      * @param players the players to purge
-     * @param names names to purge (lowercase)
+     * @param names names to purge
      */
     public void executePurge(Collection<OfflinePlayer> players, Collection<String> names) {
         // Purge other data

src/main/java/fr/xephi/authme/task/purge/PurgeService.java

@@ -91,7 +91,7 @@ public class PurgeService {
 
         isPurging = true;
         PurgeTask purgeTask = new PurgeTask(this, permissionsManager, sender, names, players);
-        bukkitService.runTaskAsynchronously(purgeTask);
+        bukkitService.runTaskTimer(purgeTask, 0, 1);
     }
 
     /**

src/main/java/fr/xephi/authme/task/purge/PurgeTask.java

@@ -104,9 +104,9 @@ class PurgeTask extends BukkitRunnable {
         cancel();
 
         // Show a status message
-        sendMessage(ChatColor.GREEN + "[AuthMe] Database has been purged correctly");
+        sendMessage(ChatColor.GREEN + "[AuthMe] Database has been purged successfully");
 
-        ConsoleLogger.info("Purge Finished!");
+        ConsoleLogger.info("Purge finished!");
         purgeService.setPurging(false);
     }