Svglib

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- Final fix to conversion from shorthand quadratic to cubic bézier (372).

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- Add support for ``ex`` units (assuming for em/2).
- Add support for ``image/jpg`` embedded images (in addition to ``image/jpeg``).
- Avoid crash on ``import`` rules in stylesheets. The rules are simply ignored
(285).
- Fix conversion from shorthand quadratic to cubic bézier (364).

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- No source code changes, only fixed a leftover set_trace() in the released code
(352).

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- Include ``tests/samples/others/*.svg`` in source distribution (341).
- Render leading and trailing text content in text nodes (343).
- Better integration with cssselect2 to support a wider range of CSS selectors
(346).

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- Support mmult import from reportlab < 3.5.61 (316).
- Make zero-length Line, PolyLine and Polygon appear in PDFs when their stroke
value is non-zero (319).
- ``<symbol>`` nodes now only appears in documents when they are
referenced, not on their initial appearance (328).
- If only rx or ry is defined on a ``<rect>``, the value is used for both.
- Support non-prefixed ``href`` attribute added in SVG 2 (330).
- Fixed parsing of empty SVG style nodes (325).
- Handle content of multiple SVG style nodes (326).
- Better font caching for some font names (338).

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- Revert to scripts usage instead of console_scripts during setup (313).