rsyslog work log 19

Past day's rsyslog work log: 2008-04-02 - disabled atomic operations for the time being because they introduce some cross-platform trouble - need to see how to fix this in the best possible way - added librelp check via PKG_CHECK thanks to Michael Biebl's patch - added more descriptive error codes to module loader - added more meaningful error messages to rsyslogd (when some error happens during startup) - updated status informatation and syslog-ng comparison - begun working on time-window based dequeueing 2008-04-03 - bugfix: memory leaks in script engine - properties are now case-insensitive everywhere (script, filters, templates) - added the capability to specify a processing (actually dequeue) timeframe with queues - so things can be configured to be done at off-peak hours - bugfix: some memory leak when queue is runing in disk mode