Log Message:
Updated to version 2.4.1. (OK by adrianp@)

Pkgsrc changes:
  - Marked package as supporting installation to DESTDIR.
  - Shut up warning about *.pm files installed with execute permissions.
  - This is a pure Perl module.
  - According to the documentation, p5-GD 1.20 is sufficient.

Changes since version 2.3:
==========================
2.4  Changes done by Christine Zilker, Gerhard Stuhlpfarrer, R. Dassing
        Added new Options:
             ring             Draw a ring instead of a Pie
             legend_lines     Connect Pie and the description with a line
             stepline         Connect Lines and LinesPoints by a stepped line
             stepline_mode    (thanks to Gerhard Stuhlpfarrer)
             brush_size1      Define Brush Size for Composite 1
             brush_size2      and 2
        Color problem in Pie fixed
        Positioning of the description optimized in Pie
        Division by zero problem fixed in Pie
        Module 'Bars' checks for numeric data a input on y-axis
        New Function added to Base:
            minimum  - determine minimal value of an array of numeric values
            maximum  - determine maximal value of an array of numeric values
            arccos   - arccos
            arcsin   - arcsin
        Some small bugs corrected:
            Base::_find_y_scale
            Base::_find_y_range   : check for numeric values
            Base::_find_x_range   : check for numeric values
        Latex sources for documentation included
            (We hope to get a better documentation be a native english
            speaking person)