Minor fixes in radius_start_program
If radsniff is using linking DAs and fails to locate a previous request using them, we must search using the normal 4 tuple to avoid inserting duplicate entries

...which would then not actually be inserted and just leak memory
Fix issues with previous commit
Reinsert retransmissions into the request_tree, else node ordering can get messed up and cause nasty side effects
Log the original->id if original is available, so we display the rs id of the request that was retransmitted
Global packet count should be a uint64_t
Need to compare packet type in the link tree too!
Add support for IPv[4|6] prefixes in dynamic clients
Simplify radsniff request cleanup
Proper fix for conflicting requests
Apply request/response code filters earlier
Removal from the event queue is now done by the destructor
Clarify what is being dropped
Avoid accessing freed memory by trying to delete the event that was just handled (in radsniff)

Make return of fr_event_delete more useful.
Eval the start_daemon command
Use eval for start_daemon
Use more detailed retransmission messages
Add debug message to show when the user wasn't a member of any groups
Count number of retrieved groups
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