v1.4.1

Changelog

61031bf Don't bother running tests because we don't have creds. Instead just run a release build when a tag was pushed. Publish artifacts on github.
0d2e82b Merge pull request hashicorp#227 from hashicorp/jbardin/head-accept-range
0d90093 don't attempt range request without object size
d330e2a Merge pull request hashicorp#215 from hashicorp/update-circle-config-save-cache
6061d9d reordered save cache, added back explicit mod download
214e7f8 update circleci config to save mod cache
f3eb871 Merge pull request hashicorp#214 from hashicorp/add-circle-config
9240d6e Update docs for gcs tests
918e36d Feedback from aaron 👍
06069fb Remove .travis.yml
443423c Apply gofmt changes
08532d3 Update readme with gcs testing tidbit
76fe577 fixing YML to get config to validate
1937caa fixed formatting issue in yml
719f2a5 Update readme to refer to circle
a591563 added go-test step
cebfae8 add circleci config
cb8f972 Merge pull request hashicorp#134 from troyready/fix_104
3db8f8b fallback to master branch if origin default branch can't be found
196a58c Remove hardcoded master branch reference
c712229 Merge pull request hashicorp#208 from 178inaba/identities_only
0160ffc Add -o IdentitiesOnly=yes to test GIT_SSH_COMMAND
b378feb Merge pull request hashicorp#206 from 178inaba/nil_header_check
9f6a964 Fix not to set header on http client when HttpGetter.Header is nil