test/Makefile: add bin/iptb into BINS

License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>

test/Makefile

 
-BINS = bin/random bin/multihash bin/ipfs bin/pollEndpoint
+BINS = bin/random bin/multihash bin/ipfs bin/pollEndpoint bin/iptb
 IPFS_ROOT = ../
 IPFS_CMD = ../cmd/ipfs
 RANDOM_SRC = ../Godeps/_workspace/src/github.com/jbenet/go-random