Fixed Explosion Resistance Bug

Fixed Ancient Fabric and Eternal Fabric being vulnerable to explosions.
I also noticed that a lot of DD blocks have unusual stats. I'm not sure
whether those stats were assigned intentionally or simply because of
copying and pasting code, but the values are certainly counterintuitive
when you consider some of the block materials.
Merge remote-tracking branch 'upstream/master'
Added Support for Hopper Metadata Rotation

Added code for SchematicLoader so that hoppers will rotate properly.
This was probably not considered an issue before we had support for tile
entity exports and imports. Now it's critical that we support hoppers.
There are other blocks that are still not supported - we should really
fix this in the future so that all blocks will rotate. The code for this
is overly complicated - we should look into a simpler method.
Merge pull request #44 from SenseiKiwi/master

Fixed Explosion Resistance Bug and Hopper Metadata Rotation