rsyslog work log 25

Yesterday's rsyslog work log: 2008-03-05 - updated omgssapi to use the current interface version definition (I seem to have forgotten this yesterday) - changed modules.c calling conventions to be interface-based - moved module loader from conf.c to module.c, where it belongs - made the necessary plumbing to auto-load library modules - upgraded debug system to include iRet in function exit message - changed module interface so that instances need only to be supported by output plugins (if we actually need them for input plugins, we can always add it again...) - milestone: first implementation of library modules (but do not get unloaded on exit/hup so far) - bugfix: imfile used invalid obj-call (newly introduced bug) - extracted logerror*() family of functions from syslogd, made them their own class and converted to new object calling conventions (interface-based) - converted gss-misc into a loadable library module - bugfix: actions were not correctly retried; caused message loss - moved date/time handling functions to their own object - changed module loader to automatically add ".so" suffix if not specified (over time, this shall also ease portability of config files) - shuffled some more code from syslogd.c to the right places - fixed bug in build process