Merge pull request pacak#166 from pacak/exit_code

Release 0.7.9

Merge pull request pacak#164 from pacak/rc-0.7.8

Release 0.7.8

Merge remote-tracking branch 'origin/master'

Merge remote-tracking branch 'origin/master'

Merge pull request pacak#126 from pacak/rc-0.7.4

Release 0.7.4

bump bpaf_derive

Merge pull request pacak#114 from pacak/rc-0.7.2

Release 0.7.2

Merge pull request pacak#107 from pacak/colors

Release 0.7.1

Merge pull request pacak#104 from pacak/rc-0.7.0

release 0.7.0

Merge pull request pacak#76 from pacak/changes

Also update the changelog