PHPStan will only detect a configuration file in the current working
directory, so set that to the directory in which ALE finds the
configuration file.
* Adds --memmory-limit option for PHPStan linter
* Updates docs for phpstan --memory-limit option.
* Adds Arizard to authors
* Adds test for phpstan memory limit parameter
* Fixes order of parameters in test
* Changes dash to underscore
This is achieved by switching to JSON, which makes it much easier to
avoid confusion between an error message and the next one. It also
spares us from having to deal with regular expressions, and eliminates
some edge cases that no longer need to be tested.
