Enable Ctrl-C in debug mode

fix exit code reading

Bump kaniko version v1.7.0

fix stuck input on exit

fix metadata overrides

Merge pull request #10 from kvaps/debug-shell

Add support for kaniko --debug-shell and extra fixes

update kaniko version v1.6.0

Update README.md, bump version

update kaniko version v1.5.1

update kaniko version v1.3.0