Fix cran (#97)

0.4.4

fix badge

closes #79 (#80)

* closes #79

* test grouped_df where idx is specified directly in runner call

* add tests to grouped_df

* update news about defunct arg

* reload docs after removing type argument

* convince codecov that grouped_df is covered

* release

Devel (#75)

* runner 0.4.0
- defunct `type`
- fix `run_max` inconsistency
- bump the version and update NEWS

deploy and release 0.3.8

update README

fix grammar in description

type = "auto" (#48)

* type = "auto"

More tests (#44)

* more tests

Output of any type (#39)

* closes #28

* remove unsigned int from checks

* same seed

* increment version and remove BH dependency