Changes in tfplot version 2021.6-1

   o	Fixed example writing to file in user directory. Now uses tempfile().  

   o	Fixed Guide and tsScan examples so data length and matrix dimension 
    	match (as caught by a new CRAN check).	

   o	Fixed Rbuildignore so that files from building vignettes are 
    	not omitted in the package build.	

Changes in tfplot version 2015.12-1

   o	Increased split plot right margin size to avoid label truncation.

   o	Fixed date rounding that occasionally caused a Xaxis label shift by a 
   	month in split plots.

Changes in tfplot version 2015.7-1

   o	Added default package imports as now required by CRAN.

Changes in tfplot version 2015.4-1

   o	Change require to requireNamespace for googleVis.

Changes in tfplot version 2014.2-2

   o	Minor change (rep_len to rep) to accommodate older R versions.

Changes in tfplot version 2014.2-1

   o	Eliminated passing par to plot and other plotting functions. It is now 
	set in tfplot or tfOnePlot. (It was probably not working previously.)

   o	Removed mar as an argument to tfplot (previously deprecated). Margins
   	must now be passed by par=list(mar=...).
	
   o	Added import of tframe in NAMESPACE.

Changes in tfplot version 2013.12-1

   o	Added extra space at top when title or subtitle has a new line character.

   o	Added splitPane argument to tfplot and tfOnePlot to provide option
   	to produce a two pane graph, with more detail for lasy observations.

   o	Added Yaxis arguments to tfplot and tfOnePlot to provide more options
   	for Y axis format.

   o	Added Xaxis argument to tfplot and tfOnePlot to provide better handling
   	of X axis format.

   o	Changed tfplot behavior for zooreg series so they are treated as 
   	ts series.

Changes in tfplot version 2013.4-1

   o	Changed tplot and tfOnePlot default for pch from NULL to 1 to
   	avoid warning in R-3.0.0 trying to rep() NULL.
	
   o	Added tfOnePlot tests.

Changes in tfplot version 2012.7-1

   o	Minor change in tfVisPlot to avoid note when building, regarding
   	googleVis (which is only suggested not required).

Changes in tfplot version 2012.4-1

   o	First release. Separated user utilities (tfplot, tfOnePlot, and simple
   	series manipulations) out of tframe. See tframe NEWS for older history.