Nov 2014 Update on version 5 progress: -rc3 available

[Ethan A M. <sf...@us...>]

I have placed a source tarball on SourceForge for the
3rd (final) version 5.0 release candidate.

I do not expect much to change between -rc3  and the final 5.0 release,
but if your valuable testing uncovers a problem there is still time to fix it.

The user-visible changes since -rc2 are
=============================

- revised "fit" command 
 + syntax:
       fit {<ranges>} <expression>
           '<datafile>' {datafile-modifiers}
           {{unitweights} | {y|xy|z}error | errors <var1>{,<var2>,...}}
           via '<parameter file>' | <var1>{,<var2>,...}
  + this is a CHANGE from -rc1 and -rc2
  + most version 4 "fit" syntax is detected and emulated even though
     the command options have changed. Also there is now an explicit
     command "set fit {v4|v5}" to force ambiguous commands to be
     interpreted as they were in version 4.

- completion of time/date format changes begun in -rc1 and -rc2
 + formats used for input and output are now distinct
 + fime format used to read input data or range/position commands
    is specified by 'set timefmt' or  timecolumn(column,"timeformat')
 + timecolumn(column) uses default from 'set timefmt' as in version 4
 + time format used to output axis tic labels is specified by
    set {xyz}tics {timedate|geographic|numeric} format "..."
 + new format modifier "t" distinguishes a time interval from a date

- wxt terminal has an Export-to-File widget on the toolbar

- various bug fixes (see NEWS and ChangeLog)

Known issues (no resolution expected before 5.0)
====================================

- the wxt terminal emits runtime warnings and errors if gnuplot is 
  built using wxWidgets 3.0 rather than 2.8


	thanks for all the testing and feedback on -rc1 and -rc2

			Ethan