Modified the Appender(Properties) ctor to build the filtering chain specified in the properties file.
Modified the Appender(Properties) ctor to build the filtering chain
specified in the properties file.

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