The usual asset of bugfixes/improvements:

The usual asset of bugfixes/improvements:
- Variable $bonus renamed in function to make clear it is boolean type
- Counting of sent mails (column mails_sent) added
- No longer needed header comments removed (it is heavily rewritten anyway)
- A lot missing/wrong array elements fixed in templates and PHP scripts
- New wrapper added (used several times in pool-user.php)
- CSS classes fixed in several 'order' templates
- Several other minor improvements/fixes
- TODOs.txt updated