rsyslog work log 12

Yesterday's rsyslog work log: 2008-04-17 - some cleanup - created a global data object - moved "family" variable to global data pool - moved "bDropMalPTRMsgs" variable to global data pool - moved "option_DisallowWarning" variable to global data pool - moved "DisableDNS" variable to global data pool - moved host/domain-name related variables to global data pool - moved "glblModPath" variable inside global data pool (but still as a variable, not part of glbl object) - added the ability to specify an error log function for the runtime - removed dependency of core runtime on dirty.h - imported tcp module from librelp as basis for new stream class we got permission to include the tcp module from librelp copyright holders - done some forward-compatibility work on librelp - brought netstrm to a (hopefully) somewhat usable state - partly rewritten and improved omfwd - some (small) cleanup of omgssapi - optimized omfwed, now loads TCP code only if this is actually necessary