* [ADD] New log class for better action events handling.
* [ADD] New email class which uses Log class attributes for message composing.
* [ADD] New Request class for managing POST/GET requests.
* [MOD] Almost whole session vars are managed through Session class.
* [MOD] Minor fixes on templates
* [ADD] Abstract classes and interfaces for better code structure.
* [MOD] Actions handled as integers not strings and are consistent accross app modules.
* [MOD] Classes' names where modified. Namespaces where added for better handling.
* [ADD] Common exception class for the whole app.
* [ADD] New base file for app initialization.
* [MOD] Speed improvements.
