Alpha v1.3.0-pre5

Alpha v1.3.0-pre5 is an upcoming pre-release after Alpha v1.3.0-pre4. This pre-release didn't really add anything, it was just more of a tweaking update.

Changes

 * Made Meteorite Ore spawn between 80 - 128 instead of 100 - 128
 * Made Meteorite Ore spawn more frequently
 * Made Lead Ore spawn more frequently
 * Made Tin Ore spawn more frequently