MapleCouponInstaller + EXP/DROP Coupon System

Added mechanics for the EXP/DROP cash coupons (such as enabling
out-of-time active coupons via command and automatic update of active
ones over the designed interval). Created MapleCouponInstaller as means
to gather info about the coupon intervals and rates from the WZs (the
generated SQL table is already updated on the db_database.sql file).

src/net/server/world/World.java

@@ -113,11 +113,11 @@ public class World {
     public void setExpRate(int exp) {
     	//System.out.println("Setting server EXP Rate to " + exp * ServerConstants.EXP_RATE + "x.");
         for(MapleCharacter chr : getPlayerStorage().getAllCharacters()) {
-            chr.revertRates(false);
+            chr.revertWorldRates();
 	}
         this.exprate = exp;
         for(MapleCharacter chr : getPlayerStorage().getAllCharacters()) {
-            chr.setRates();
+            chr.setWorldRates();
         }
     }
 
@@ -127,11 +127,11 @@ public class World {
 
     public void setDropRate(int drop) {
         for(MapleCharacter chr : getPlayerStorage().getAllCharacters()) {
-            chr.revertRates(false);
+            chr.revertWorldRates();
 	}
         this.droprate = drop;
         for(MapleCharacter chr : getPlayerStorage().getAllCharacters()) {
-            chr.setRates();
+            chr.setWorldRates();
         }
     }
 
@@ -141,11 +141,11 @@ public class World {
 
     public void setMesoRate(int meso) {
         for(MapleCharacter chr : getPlayerStorage().getAllCharacters()) {
-            chr.revertRates(false);
+            chr.revertWorldRates();
 	}
         this.mesorate = meso;
         for(MapleCharacter chr : getPlayerStorage().getAllCharacters()) {
-            chr.setRates();
+            chr.setWorldRates();
         }
     }
 
@@ -155,11 +155,11 @@ public class World {
     
     public void setBossDropRate(int bossdrop) {
         for(MapleCharacter chr : getPlayerStorage().getAllCharacters()) {
-            chr.revertRates(false);
+            chr.revertWorldRates();
 	}
         this.bossdroprate = bossdrop;
         for(MapleCharacter chr : getPlayerStorage().getAllCharacters()) {
-            chr.setRates();
+            chr.setWorldRates();
         }
     }