RConvLog Version history

v1.0 - 2001-05-17 - initial version 
v1.1 - 2001-10-30 - added support for ignoring old records 
                    (-n and -h arguments) 
v1.2 - 2002-01-06 - fixed a simple bug which caused rconvlog to ignore 
                    january records 
v1.3 - 2002-12-17 - many enhancements and smaller bug fixes. 
                  - rconvlog now compiles on windows and unix 
                  - changed the way of progress reporting 
v1.4 - 2004-07-08 - fixed a bug that caused fields to be ignored if their number
                    exceeded 21.