* Refactor into a custom resource

* Update for Chef >= 14.4

0.3.4

* install `cronner` `v0.6.1` by default

0.3.3

* make sure the `predefined_value` property is passed to the `cron_d` resource

0.3.2

When invoking the `cronner` LWRP with `action :create`, always make sure to
include the `cronner::default` recipe. Otherwise, the `cronner` binary may not
be installed.

0.3.1

* update `README.md` to include information about the `passthru` and
  `use_parent` properties

0.3.0

* install `cronner` v0.5.0 by default
* add support for `--passthru` and `--use-parent` flags

0.2.4

* fix issue with invalid flags being rendered

0.2.3

* fix source and issues URL in the metadata
* remove unnecessary `format_string()` call

0.2.2

* increase default cronner version from `0.4.1` to `0.4.2`

0.2.1

* add a detailed README file for the supermarket