0.3.0 / The compressed update

This update adds:

• Shored sand & gravel, which are not affected by gravity
• Compressed versions of cobblestone, mossy cobblestone, polished stone, polished stone tiles and polished netherrack
• Iron & steel plating blocks
• Small marble & lapis tiles
• Vent block (purely decorational)

Other notable things in this update:

• Migrated to BTA! 8.0.1
• Migrated to Halplibe 6.1.4
• MAJOR code optimisation and restructuring
• Fixed some crafting recipes having wrong outputs
• Changed mixin registry key
• Assigned proper materials and sounds to all blocks
• Custom texture mapping for checkered tiles block and checkered tiles stairs
• New and improved automatic crafting recipe registry