Updated mcmod.info, build.gradle and headers

- Resolve issue that caused mcmod.info never to be loaded due to a
  mismatching modid.
- Resolve issue that caused the Spoutcraft logo not to be loaded when on
  the mod page for Spoutcraft.
- Added Commons-Codec v1.8
- Added missing/Updated existing Headers

Signed-off-by: Steven Downer <grinch@outlook.com>