0.5.0-pre Release is ready

This release includes more SNMP support, the modules now run as daemons (saves compilation/configuration time), there are OS-dependent libraries for all modules, a fall-back function is included, the HotSaNIC.pm was split into functional parts, there is a wrapper script to support old modules, there is sampling via signal handlers, many diagrams scripts were converted to Perl for speed, and the directory structure was cleaned up by creating subdirs "modules", "lib", and "var".