While the latest packages may continue to work on other releases, we will no longer officially support these releases, nor will we distribute packages.
This change removes all deprecated commands. In many cases, users have been warned for a number of releases before the commands have been removed. All commands that were removed have existing alternatives.
While I do not agree with _every_ style change, this will force Dokku to have consistent formatting across all shell scripts, which is arguably a Good Thing™.
The command used to reprocess everything is:
```shell
shfmt -l -bn -ci -i 2 -w .
```
The checkstyle xslt wasn't quite good enough, resulting in missing/malformatted output. Note that this now excludes _passing_ tests, which also isn't quite right, but a fair bit closer to the xsd here: https://github.com/windyroad/JUnit-Schema
This requires us to run shellcheck twice, as the first pass doesn't output anything human readable - both because of the redirect and because shellcheck doesn't directly support it - which increases lint runtime but allows us to have both the junit information and the normal human-readable output.
Note that the checkstyle output does not contain timing info.
This switches from the older, unmaintained version of bats to one that _is_ maintained. In particular, this fork of the community version - bats-core/bats-core - adds junit timing support, which can be used to track down slow tests.
Once the bats-core/bats-core repository merges junit support, we will switch back to upstream.
Note that tests on OS X will still run using a version that _does not_ have junit timing support.
