I am working using a bottom-up approach, and am referring to the JS implementation of Bitswap.

I have implemented varint_decode, IPFSBlock and multihashing, as per their JS equivalents.
Also, I have implemented wantlist and message.

I will write the documentation later on.

Travis and tox have been set up.
As of now, all tests are working fine.

All feedback is welcome.

Tagging @Alexander255