Fixed bug, where cleanup of db would hang on startup.
Corrected sizes of various templates
Fixed bug, where program would crash on second SNMP cycle.
Minimized SNMP memory usage.
Minimized thread living time.
Fixed bug, where  SNMP threads would hang.
Change deleting of nodes in db, so that they are deleted at close of operation.
Changed implementations of deleting of nodes to use new clear method instead.
Rewrote node locking mechanism.
Changed the unique node creation to pessimistic locking.
Changed the getLevel2 + getLevel1 to getGrandchild, to ensures, the correct XML plugin is used.
Fixed bug, where networks smaller than /30 would not be loaded in configuration.
Implemented checking of all authorizations of SNMP devices in case of timeout.
Implemented objectId matching, so we can now parse plugins.