Fix author and other strings in the mdk mods toml file, update coremods to 0.3.+

Signed-off-by: cpw <cpw+github@weeksfamily.ca>

src/main/java/com/example/examplemod/ExampleMod.java

@@ -60,7 +60,7 @@ public class ExampleMod
     private void processIMC(final InterModProcessEvent event)
     {
         // some example code to receive and process InterModComms from other mods
-        LOGGER.info("Got IMC", event.getIMCStream().
+        LOGGER.info("Got IMC {}", event.getIMCStream().
                 map(m->m.getMessageSupplier().get()).
                 collect(Collectors.toList()));
     }