eulerr 5.1.0

eulerr 5.1.0

New features

• venn() is a new function that produces Venn diagrams for up to
  5 sets. The interface
  is almost identical to euler() except that a single integer
  can also be provided. A new vignette, Venn diagrams with eulerr,
  examplifies its use.

Minor changes

• Calculations for the strips in plot.euler() when a list of
  Euler diagrams is given has been improved. Setting fontsize or
  cex now results in appropriately sized strips as one would expect.
• Tiny overlaps (where the fraction of the area is less than one
  thousandth of the largest overlap) in the final diagram are no longer
  plotted.
• eulergram() objects from plot.euler() now have a proper grob name
  for the canvas grob, so that extracting information from them is easier.

Bug fixes

• Return value documentation for euler() now correctly says "ellipses"
  and not "coefficients".
• data.frame or matrix inputs now work properly
  when values are given as numerics. (#42)
• Fixed some spelling errors in news and vignettes.