chore(*): release 0.8.1

Pull request: nickel-org#338
Approved by: Ryman

chore(*): release 0.8.0

Pull request: nickel-org#325
Approved by: Ryman

chore(*): release 0.7.3

Pull request: nickel-org#301
Approved by: Ryman

chore(*): release 0.7.2

Pull request: nickel-org#298
Approved by: Ryman

chore(*): release 0.7.1

chore(*): release 0.7.0

chore(changelog): update generated changelog

chore(*): 0.5.0 release

chore(release): cut the 0.3.0 release

chore(*): cutting the 0.2.1 release