chore: release v0.8.0

Release v0.7.0

Merge pull request #53 from ipfs/ajnavarro-patch-1

Release v0.5.2 (#50)

Upgrade to IPLD `0.18.0`

Upgrade to a concrete tagged release of IPLD. The previous version used
by delegated routing was the commit just before the 0.18.0 release.

Bump version in version file in preparation for release.

Release v0.5.0 (#47)

Merge pull request #44 from ipfs/guseggert-patch-2

chore: Bump version

bump to latest edelweiss; query moved to http body (#23)

update dep on edelweiss (#20)