Tracer turned of for other page types than html
This version introduces multiple enhancements:

Added methods to turn off tracer, and turn off tracer for pages like css/js

Details of additions/deletions below:
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Modified:   /BLUE_FRAMEWORK/packages/CORE/core_class.php
            -- Modified --
               _otherPage turned off tracer

Modified:   /BLUE_FRAMEWORK/packages/tester/tracer_class.php
            -- Modified --
               $tracerOn changed to $_tracerOn and converted to protected
               start, marker, display and saveToFile $tracerOn changed to $_tracerOn
               small code convention fix
            -- Added --
               turnOffTracer method to turn off tracer
               turnOnTracer method to turn on tracer