New test library (issue #62)
This version introduces multiple enhancements:

Added grouping to benchmark class and added tracer class

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

Added:      /BLUE_FRAMEWORK/packages/tester/tracer_class.php
            -- Added --
               library to trace whats happening in script

Modified:   /BLUE_FRAMEWORK/packages/tester/benchmark_class.php
            -- Added --
               $_groupOn contains information that marker time goes to group
               $_group contains array of times for group of markers
               $_backgroundColor with default background color for group
               startGroup to start grouping
               endGroup to finish grouping
            -- Modified --
               display, changed marker array keys and added display of groups
               setMarker to handle grouping of markers

Modified:   /BLUE_FRAMEWORK/packages/CORE/core_class.php
            -- Modified --
               __construct and _htmlPage, added marker grouping

Modified:   /index.php
            -- Added --
               loading of tracer, run some tracer methods, and added grouping