Merge branch 'dev' into 1.13
# Conflicts:
# src/main/java/net/glowstone/block/GlowBlock.java
# src/main/java/net/glowstone/block/blocktype/BlockDoublePlant.java
# src/main/java/net/glowstone/block/blocktype/BlockMushroom.java
# src/main/java/net/glowstone/block/blocktype/BlockSapling.java
# src/main/java/net/glowstone/block/blocktype/BlockStem.java
# src/main/java/net/glowstone/block/blocktype/BlockTallGrass.java
# src/main/java/net/glowstone/block/blocktype/BlockType.java
# src/main/java/net/glowstone/command/minecraft/TeleportCommand.java
# src/main/java/net/glowstone/command/minecraft/TpCommand.java