Use mineflayer exports instead of lib imports, for prismarine-block/b…

…iome

mineflayer's lib/block.js and lib/biome.js moved to separate modules,
prismarine-block and prismarine-biome. Use them indirectly through
mineflayer's export object instead of referencing the now-nonexistent
library files. GH-19

mineflayer-stream.js

@@ -38,18 +38,18 @@ if (PACKET_DEBUG) global.hex = hex;
 module.exports = {
   //vec3: require('vec3'), // not really needed
   createBot: createBot,
-  Block: require('mineflayer/lib/block'),
-  Location: require('mineflayer/lib/location'),
-  Biome: require('mineflayer/lib/biome'),
-  Entity: require('mineflayer/lib/entity'),
-  Painting: require('mineflayer/lib/painting'),
-  Item: require('mineflayer/lib/item'),
-  Recipe: require('mineflayer/lib/recipe'),
-  windows: require('mineflayer/lib/windows'),
-  Chest: require('mineflayer/lib/chest'),
-  Furnace: require('mineflayer/lib/furnace'),
-  Dispenser: require('mineflayer/lib/dispenser'),
-  EnchantmentTable: require('mineflayer/lib/enchantment_table'),
+  Block: require('mineflayer').Block,
+  Location: require('mineflayer').Location,
+  Biome: require('mineflayer').Biome,
+  Entity: require('mineflayer').Entity,
+  Painting: require('mineflayer').Painting,
+  Item: require('mineflayer').Item,
+  Recipe: require('mineflayer').Recipe,
+  windows: require('mineflayer').windows,
+  Chest: require('mineflayer').Chest,
+  Furnace: require('mineflayer').Furnace,
+  Dispenser: require('mineflayer').Dispenser,
+  EnchantmentTable: require('mineflayer').EnchantmentTable,
   blocks: mcData.blocks,
   biomes: mcData.biomes,
   items: mcData.items,