improve cleaning up in dht tests.
chore(docker) create a basic ipfs image
feat(blockstore): implement blockstore
fix(docker) listen on all interfaces
Merge pull request #83 from jbenet/docker

chore(docker) create a basic ipfs image
style(blockstore) move to top-level
feat(util:testutil) add NewBlockOrFail(t, data) factory method

for use in tests
Add config flag to cmd line interface
Merge pull request #85 from jbenet/feat/blockstore

feat(blockstore): implement blockstore
Change config flag to accept config dir instead of file path
Merge branch 'master' of github.com:jbenet/go-ipfs
Merge remote-tracking branch 'upstream/master'
fix localNode call