v4

Changelog

b0b2eff Add @e1senh0rn, @saromanov and @nesl247 as contributors
b25c99a Added homebrew formula
a7473b4 Cleanup head and add test
e540fbe Create LICENSE
21241f7 Fixed formula installation instructions
f2fe51b Merge pull request #3 from e1senh0rn/master
7cc4044 Merge pull request #6 from e1senh0rn/issue/formula_instructions
1725b54 Merge pull request #8 from reconquest/add-license-1
850ecea Move homebrew formula
1d949e8 README: fix concurrent mode example
2079c76 Update tubekit release version
3760d63 mention slack community
c6efeff parse and use --kubeconfig flag, fix #9