Major schedules & DB refactor

Refactored many calls for TimerManager's schedules throughout the source.
Switched all tables using MyISAM to InnoDB: on a multi-threaded environment such as this, table-locking is an instant no-no, and other gains MyISAM would have over InnoDB are minimal.
Altered getConnection() to properly throw an exception (good practice!) in case of no available connection instead of a mere null.

src/net/server/channel/handlers/PlayerLoggedinHandler.java

@@ -267,6 +267,7 @@ public final class PlayerLoggedinHandler extends AbstractMaplePacketHandler {
         player.diseaseExpireTask();
         player.skillCooldownTask();
         player.expirationTask();
+        player.questExpirationTask();
         if (GameConstants.hasSPTable(player.getJob()) && player.getJob().getId() != 2001) {
                 player.createDragon();
         }