Update commands.html

without "return false" in the javascript function the delete-process gets called even if the js-confirm dialog was cancelled.
I suggest changing the input type to "button" like the buttons above.
CONTRIB-4394 fix header on index.php
replacing deprecated API call
CONTRIB-4439 add plugin icons in Moodle 2.4+ style
Merge pull request #6 from fz883/patch-1

Update commands.html
new coding conventions
Strict standards
API changes Moodle 2.5:
Icons
get_context_instance
Limiting the size of the list of students to be scheduled
Now requires Moodle 2.5
Removing string concatenation from english language file
Fixing undefined array when nop teacher assigned
Fixing link to user profile
API changes in setType()
Rewriting slot forms using formslib
Better upgrade code?
Better performance for long student lists
fixing display bug