data model abstract and renderer [0.9.0]
THIS IS PRE-ALPHA SOFTWARE, use it at your own risk.

This version introduces multiple enhancements:

created base abstract class for handling database resources
created base abstract class for handling templates (not working yet)
both of that modules are in alpha version and need to be finished

also changed Loader::exceptions method (added new parameters)

Details of additions/deletions below:
--------------------------------------------------------------

Added:      /Lib/Core/Render/View/Grid.php
            -- Added --
                empty grid class

Added:      /Lib/Core/Render/View/Abstract.php
            -- Added --
                template renderer abstract

Added:      /Lib/Core/Render/etc/config.ini
            -- Added --
                renderer configuration file

Modified:   /Lib/config.ini
            -- Added --
                enabled renderer module
            -- Updated --
                changed version from 0.8.0 to 0.9.0

Modified:   /doc/events.md
            -- Added --
                added new events

Modified:   /Lib/Core/Db/Model/Resource/Abstract.php
            -- Updated --
                adedd some methods to handling database resource

Modified:   /Lib/loader.php
            -- Updated --
                exceptions, added non required parameters

Modified:   /Lib/Core/Db/etc/config.ini
            -- Modified --
                changed version from 0.1.0 to 0.2.0