loglevel.cxx: Move toUpper() call from defaultStringToLogLevelMethod() to fromString().
loglevel.cxx: Move toUpper() call from defaultStringToLogLevelMethod() to fromString().

hunter-packages/log4cplus,csuideal/log4cplus,csuideal/log4cplus,csuideal/log4cplus,ccpaging/log4cplus,hunter-packages/log4cplus,hunter-packages/log4cplus,ccpaging/log4cplus,hunter-packages/log4cplus,csuideal/log4cplus,ccpaging/log4cplus,ccpaging/log4cplus