Coding Style: Fixed white-space errors.
Coding Style: Adding missing curly braces.
Coding Style: Variables must not contain underscores.
Coding Style: Added missing file headers.
Coding Style: Inline comments must start with a capital letter, digit or 3-dots sequence
Coding Style: Inline comments must end in full-stops, exclamation marks, or question marks
Coding Style: Fixed excessive line lengths.
Merge branch 'coding_style'
Added version.php, now required in by Moodle.