Initial commit
Merge branch 'master' of github.com:aferenz/moodle-block_course_tree_list
Update README.md
added if statement to check for the empty value
Merge branch 'hotfix-46254119-empty_value_warning'
Merge branch 'master' of github.com:aferenz/moodle-block_course_tree_list
added missing content instantiation
Merge branch 'hotfix-46254119-empty_value_warning'