1.4.1

Changelog

9f5b9b6 Add short name for clean command
e40ec11 Build more architecture on release
aa3b2d3 Merge pull request #30 from thii/clean-short
9e88196 Merge pull request #31 from Swatto/CI-use-go1.8
896f690 More releases
d37f810 Move license to separated file
a38f424 Update homebrew formula on updating
c97ac30 Upgrade CI stack and vendors
3beb353 Use Go 1.8 on Travis