+08Jun20=======================================================================
+1. Fix show/mydx (lack of) filtering bug.
+2. Add qra locator to prefix_data.pl.
+3. Add 4 digit qra square for spotted callsign if show/dxgrid is enabled.
+4. Fix general filtering bug where erroneous input causes crashing.
+03Jun20=======================================================================
+1. Make sure that all possible regexes get passed across to the search engine.
+2. Fix out of order logging on sh/log queries spanning more than one month.
+3. Do not read backwards on sh/dx, reading forwards seems a 1/3 quicker.
+4. Add <ms>, <tr> and <es> shortcuts to sh/dx (e.g sh/dx <tr> on 2m).
+02Jun20=======================================================================
+1. Fix the small whoopsie in sh/dx.
+01Jun20=======================================================================
+1. Fix sh/dx iota and qra. This completes the conversion of sh/dx's limited
+ "old style" parsing to using Filter style parsing with something that
+ allows expressions include brackets ( and ) as well as the 'not' keyword.
+ NOTE: the precedence rules are the same as perl's '!', '||' and '&&'
+ operators.
+31May20=======================================================================
+1. Improve links command layout slightly.
+2. Issue an *accurate* UPGRADE.mojo with all the new packages included!
+3. Fix issue with sh/dx
+30May20=======================================================================
+1. Fix sh/dx! It appears that there is a long standing problem with sh/dx not
+ actually return all the answers it should. I have also had a request to
+ allow / enable the "not" keyword (just like the filtering system dones).
+
+ Now this was one of the earliest modules that I wrote and it took quite
+ a bit of work to tease out the important bits and then use the Filter
+ module (as in acc/spot) to generate the sh/dx filtering expressions. This
+ seems to have been done.
+
+ NB This will likely not work if you are using a SQL backend to do sh/dx
+ commands. This was never actually an official feature. It is now
+ deprecated.
+29May20=======================================================================
+1. Please install Math::Round and Data::Structure::Util. Instructions are
+ available in UPGRADE.mojo.
+2. ** Withdrawn ** user file format change to json not yet committed.
20May20=======================================================================
1. Backport convert-users-v3-to-v4.pl to allow creation of the new json
formatted *text* based user file from the old v3 DB_File and Storable