user-delete moosh command start
user-delete step1: get user id
user-delete: delete user
max arguments->255
clean up execute method
Readme updated
exception handling 1
exception handling user_delete
Added newline
Merge remote-tracking branch 'upstream/master'
moosh_generate_version_list didn't return a value
course-unenrol
added contexts
users list
remove all users and cohorts from course
readme update
new moosh command: role-update-contextlevel
Merge remote-tracking branch 'origin/pr/14'

Conflicts:
	includes/functions.php
Merge remote-tracking branch 'origin/pr/17'

Conflicts:
	README.md