Merge pull request #51 from jum/portfix

Avoid references to rd.Port and rd.Host until after they are initialized.

Merge pull request #50 from pberkel/fix-storage-export

Caddy storage export command always results in an empty tar

add caddy config env replacer

update go.mod

update go-redis version

Merge branch 'caddy-v2'

fix default Host

fix UnmarshalCaddyfile

fix go.mod

Merge branch 'caddy-v2'