Complete rewrite of groupstats.pl and NewsStats.pm.

* Switch to Getopt::Long, change coding style;
  limit line length.

* Replace 'die' and 'warn' by calls to &Bleat().

* Completely redo options and processing:
  - merge -m/-p/-a into --month
  - replace -i/-q/-d with - much more powerful -
    --group-by/--order-by
  - replace -t/-l with - much more powerful -
    --lower/--upper/--boundary
  - remove -b and replace it with --report

  Fixes #33.

* Add new report types, boundaries and sorting options:
  - report types 'average' and 'sums'
  - boundaries 'average' and 'sums'
  - upper and/or lower boundary
  - sort output independently

  Issue #35.
  Fixes #34, #38.

* Add possibility to cross-check newsgroups against
  checkgroups file.

* Complete rewrite of groupstats.pl internal logic:
  - modularize construction fo SQL queries
  - remove unnecessary special cases
  - refactor code into NewsStats.pm functions as much
    as possible

  Issue #37.
  Fixes #36.

* Rework output formats, fix padding problem by making use
  of modularized SQL queries.

  Fixes #15, #32.

* Add some more consistency checks.

  Issue #12.

* Redo documentation.

* Update TODO list.

Signed-off-by: Thomas Hochstein <thh@inter.net>

doc/TODO

@@ -29,6 +29,9 @@ Bug numbers refer to the Mantis issue tracker at <http://bugs.th-h.de/>.
   - Add other reports
     NewsStats should include some other kinds of reports (stats on used clients,
     on postings hosts/servers, ...)
+  - Add tools for database management
+    NewsStats should offer tools e.g. to inject postings into the 'raw' database,
+    or to split databases.
 
 * Individual improvements
   + NewsStats.pm
@@ -43,10 +46,15 @@ Bug numbers refer to the Mantis issue tracker at <http://bugs.th-h.de/>.
     - General tests and optimisations
 
   + feedlog.pl
+    - Complete rewrite (like groupstats.pl, include changes in NewsStats.pm)
+    - Gracefully handle interruptions to database connection, at least log
+      lost postings (Bug #30).
+    - Buffer output that cannot be written to database (Bug #31).
     - Add / enhance / test error handling
     - General tests and optimisations
 
   + gatherstats.pl
+    - Complete rewrite (like groupstats.pl, include changes in NewsStats.pm)
     - Use hierarchy information (see GroupInfo above)
     - Add gathering of other stats (clients, hosts, ...)
     - better modularisation (code reuse for other reports!)
@@ -54,13 +62,6 @@ Bug numbers refer to the Mantis issue tracker at <http://bugs.th-h.de/>.
     - General tests and optimisations
 
   + groupstats.pl
-    - output: fix formatting - GetMaxLength does not work for special queries
-      like -l or -b
-    - beautify output (formats / captions)
-    - -a: improve code - it doesn't make that much sense to get first/last
-      month from database just to query that same database with a time period
-      that equals no time period ... this part of the WHERE clause should be
-      dropped instead
     - better modularisation (code reuse for other reports!)
     - Add / enhance / test error handling
     - General tests and optimisations