Fix config BigDecimal parsing returning null on error (#5373)

Also add some more exception logging for parse issues.

Author: JRoy

Essentials/src/main/java/com/earth2me/essentials/config/EssentialsConfiguration.java

@@ -131,6 +131,7 @@ public LazyLocation getLocation(final String path) throws InvalidWorldException
         try {
             return node.get(LazyLocation.class);
         } catch (SerializationException e) {
+            Essentials.getWrappedLogger().log(Level.SEVERE, e.getMessage(), e);
             return null;
         }
     }
@@ -272,7 +273,8 @@ public BigDecimal getBigDecimal(final String path, final BigDecimal def) {
         try {
             return node.get(BigDecimal.class);
         } catch (SerializationException e) {
-            return null;
+            Essentials.getWrappedLogger().log(Level.SEVERE, e.getMessage(), e);
+            return def;
         }
     }