Refactored moduleddata.php task and added some tests
Minor change to parse_arguments in module data task.

I've also removed tests for now while I figure out how to call methods in tasks and get a return value (run() always returns void)
Merge branch 'develop' of https://github.com/unikent/programmes-plant into feature/module-update-on-live
Merge pull request #250 from unikent/feature/module-update-on-live

Feature/module update on live