Fixing some mistakes.

src/main/java/com/gmail/nossr50/skills/gathering/Herbalism.java

@@ -295,7 +295,7 @@ public class Herbalism {
                     
                 case COCOA:
                     if (configInstance.getCocoaDoubleDropsEnabled()) {
-                        Misc.dropItems(location, is);
+                        Misc.dropItem(location, is);
                     }
                     break;
 

src/main/java/com/gmail/nossr50/skills/gathering/Mining.java

@@ -384,7 +384,7 @@ public class Mining {
             case GOLD_ORE:
             case LAPIS_ORE:
             case REDSTONE_ORE:
-            case EMERALD_ORE;
+            case EMERALD_ORE:
                 if (tier < 3) {
                     return;
                 }