Delete tmp files and directories older than one week in cron

This issue needs to be tested on windows and linux and osx. These testing instructions verify that temporary files and empty directories older that are one week old (or older) are deleted. 1. Under the moodledata/temp directory creating files and directories for testing. You can use the “touch” command to create files and directories with a specific time: touch -d "25 hours ago" testdir1 touch -d "1 month ago" testdir2 touch -d "3 days ago" testfile1 touch -d "2 weeks ago" testfile2 2. Run the moodle cron Note: that the cleanup is not triggered during every cron run but only approximately 20% of the time. You may need to run the cron more than once. 3. Verify that files and directories that were given a time of more than one week are deleted from moodledata/temp 4. Run phpunit tests on linux, windows and macosx