upgrade core libraries [0.3.0]

This version introduces multiple enhancements:

finished create log files and tracer
added some tracer logs

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

Modified:   /Lib/Core/Benchmark/Initialize.php
            -- Updated --
                init, changed handling of benchmark and tracer on/off handling

Modified:   /Lib/Core/Blue/Model/Register.php
            -- Updated --
                setObject, added tracer handler

Modified:   /Lib/Core/Blue/Model/Xml.php
            -- Updated --
                __construct, added tracer handler
                loadXmlFile, added tracer handler
                saveXmlFile, added tracer handler

Modified:   /Lib/Core/Blue/Model/Initialize/Abstract.php
            -- Updated --
                __construct, added tracer handler

Modified:   /Lib/loader.php
            -- Added --
                tracer to easier handle tracer from classes
            -- Updated --
                loadClass, added tracer handler
                getObject, added tracer handler
                getClass, added tracer handler
                exceptions, added tracer handler, log handler and documentation
                log whole logic implementation

Modified:   /Lib/config.ini
            -- Modified --
                changed version from 0.2.0 to 0.3.0

Modified:   /Lib/Core/Blue/etc/config.ini
            -- Modified --
                changed version from 0.2.0 to 0.3.0

Modified:   /Lib/Core/Benchmark/etc/config.ini
            -- Modified --
                changed version from 0.2.0 to 0.3.0