Changes in version 2020-05-02 (2020-05-02)               

  - Bug fix: All transform attributes are no longer being included
    twice.
    (Fixes Issue #10)

               Changes in version 2020-02-29 (2020-02-29)               

  - Bug fix: multiple transforms are now cumulative (again!). (Fixes
    Issue #7)

               Changes in version 2020-02-22 (2020-02-22)               

  - Added new $child list which tracks the direct child elements by tag
    name.
  - Added new $find(tag, attribs) which will return a list of all child
    nodes matching the given tag names and attributes.

               Changes in version 2020-02-13 (2020-02-13)               

  - Closes Issue #4. When an attribute refers to an SVGElement object,
    the url is now represented as url(#id) rather than url('#id').

               Changes in version 2020-02-11 (2020-02-11)               

  - Add SVGLiteral class to contain literal strings to include in an SVG
    document. SVGLiteral can only contain a single object which is
    either a character string or convertible with a call to
    as.character(x). A key use for this node is for including SVG or
    HTML from another source into the current document.

               Changes in version 2020-02-10 (2020-02-10)               

  - Closes Issue #3. For colours which are specified for 'fill',
    'stroke' etc, handle the case where the colour name is valid in R
    but not in CSS e.g. 'violetred' by converting such cases to a
    hexcolour.
  - Closes Issue #1. Polygon/Polyline creation can now take arguments in
    a number of forms i.e.
      - points the actual argument as specified in SVG standard
      - xs and ys as 2 numeric vectors of equal length representing the
        coordinates of the polygon
      - xs as a matrix with the first 2 columns representing the
        coordinates.
      - xs as a data.frame with numeric columns x and y.

               Changes in version 2020-01-23 (2020-01-23)               

  - Added javascript handling functions (similar to the CSS handling
    functions)
      - $add_js_url
      - $add_js_code
      - Added vignette as an example

               Changes in version 2020-01-22 (2020-01-22)               

  - Refactored how CSS is handled.
      - Can now add multiple external CSS stylesheets with repeated
        calls to $add_css_url()
      - CSS styles which you want to add to the SVG style sheet can be
        added to any SVGElement with $add_css()
      - When a top level <svg> document is rendered, CSS urls and
        declarations are accumulated recursive from all child nodes and
        rendered as a single <style> block.

               Changes in version 2020-01-21 (2020-01-21)               

  - Added an SVGFilter class for prototyping filters. This is just a
    sub-class of SVGElement with some methods to help preview filters.
    This is very similar to how the SVGPattern class works.
  - Updated the vignette on CSS animation to include an example that
    uses an external CSS style sheet

               Changes in version 2020-01-18 (2020-01-18)               

  - When multiple attributes with the same name are given for an
    element, then only the last one is kept/used.
  - SVGPattern objects now have some built-in support for filters

               Changes in version 2020-01-12 (2020-01-12)               

  - For animate and related commands, if vectors are passed in as the
    value for a values or keyTimes argument, then paste(x, collapse=";")
    is applied. This will make some animation setup easier from R since
    we no longer have to collpse vectors before calling.

               Changes in version 2020-01-10 (2020-01-10)               

  - Added feBlend and other filter effects to stag and svg_elem
  - Added vignette on filter-elements

                        Changes in version 0.1.0                        

  - Initial release