Libraries

v1.6
- Fix conflict with themeburn themes
- Fix illegal string offset in cssmgr.php

v1.5
- Compatibility with latest PHP 7

v1.4
- Added missing font for some barcodes

v1.3
- [fix] Compatibility with latest PHP versions
- [fix] Various minor fixes

v1.2
- [feature] phpmailer class (fix problem of attachment on apple devices)
- [feature] total words library