+20Mar24======================================================================
+1. Has it really been so long since the last update?
+2. Since forever, mainly because filtering was done very early on in
+ DXSpider's development, clearing a filter needed a disconnect/reconnect
+ cycle from the user/node to activate. Now clearing or changing a filter is
+ immediately effective in the current session.
+
+ Also things like: 'rej/spot user_default on vhf' will immediately apply
+ to all users that do not already have some other filter in place. Users
+ can override this by setting a filter.
+
+ The Filter system will now show the actual token that a faulty command
+ dislikes.
+3. Disable the "is there a route to callsign X3XXX" test in talk. This is a
+ legacy test that should not apply at the user level. The resulting PC93 is
+ flood routed unless there is a genuine direct route to that callsign.
+25Mar23=======================================================================
+1. Changed the default of X and Y (in item 2 below) to 27 and 20 respectively.
+24Mar23=======================================================================
+1. Restore perl regex version of is_ipaddr. This *should* allow windows
+ updates to work again.
+2. Added cmd entry rate limiting. If a user sends X commmands in Y secs then
+ they are disconnected without notice. The defaults are X
+ ($DXCommandmode::maxcmdcount) = 16 and Y ($DXCommandmode::cmdinterval) = 9.
+
+ These can be changed by the startup script.
+
+ These default values are set generously deliberately to allow certain user
+ programs to get with the program and reduce the number of cmds that they
+ issue on connection down to something reasonable. For instance, I cannot
+ see why things like name, qth, lat/long/QRA (amongst several other sticky
+ user attributes that only need to be entered once) are sent on every login.
+
+ These default values WILL reduce over time.
+23Mar23=======================================================================
+1. Fix DXCIDR brokenness introduced recently, speeded up DXCIDR::sort, allow
+ sh/badip 2a05:dfc7:402a::1 45.134.225.96 159.69.38.160 to test individual
+ IP address as well as show the default (of every badip).
+2. Speed up and be more strict with input for is_ipaddr(<ip address>).
+22Mar23=======================================================================
+1. Fix warning in DXUtil::difft.
+21Mar23=======================================================================
+1. Fix DXUtil is_ipaddr function which was accidentally included in previous
+ commit.
+2. Do not extract IP addresses to create routing info as default.