* Improved session cache's config parameters to reduce config file queries
* Removed unused methods
* Changed some SP_Crypt class methods to static and factorized some functions
* Added some stuff to demo mode
- Improved email handling by using phpmailer class. All emails are sent in HTML format and security and authentication are available.
- Improved javascript code by code refactoring.
- Client IP address is logged in event log.
- Translation fixes.
- Minor bugfixes.
- Needs database upgrade (read wiki if unsure).
* Improved categories management by removing 'select' by 'table' style layout.
* New permissions added for customers and categories management menu (needs DB update).
* Some methods have been refactored and made a bit of code cleanup
Closes#15
Multiple users and groups can now be allowed to access to an account.
Upgrade process (requires maintenance mode on).
Split methods on new classes.
Bugfixes.
