Unrecognized packetId error printing id in hex
friendlyFire on 0xd1 package id changed from bool to byte type
added debug() method for NODE_DEBUG=mc-proto
added debug output for read/written packet ids
Protocol version updated to 1.5.1
Merge pull request #50 from onddo/packetid-3e-3f-fix

Fixed parsing package IDs 0x3e and 0x3f