Fonttools

----------------------------

- [ttLib/glyf] Raise more specific error when encountering recursive
component references (1545, 1546).
- [Doc/designspaceLib] Defined new ``public.skipExportGlyphs`` lib key (1534,
unified-font-object/ufo-spec84).
- [varLib] Use ``vmtx`` to compute vertical phantom points; or ``hhea.ascent``
and ``head.unitsPerEM`` if ``vmtx`` is missing (1528).
- [gvar/cvar] Sort XML element's min/value/max attributes in TupleVariation
toXML to improve readability of TTX dump (1527).
- [varLib.plot] Added support for 2D plots with only 1 variation axis (1522).
- [designspaceLib] Use axes maps when normalizing locations in
DesignSpaceDocument (1226, 1521), and when finding default source (1535).
- [mutator] Set ``OVERLAP_SIMPLE`` and ``OVERLAP_COMPOUND`` glyf flags by
default in ``instantiateVariableFont``. Added ``--no-overlap`` cli option
to disable this (1518).
- [subset] Fixed subsetting ``VVAR`` table (1516, 1517).
Fixed subsetting an ``HVAR`` table that has an ``AdvanceWidthMap`` when the
option ``--retain-gids`` is used.
- [feaLib] Added ``forceChained`` in MultipleSubstStatement (1511).
Fixed double indentation of ``subtable`` statement (1512).
Added support for ``subtable`` statement in more places than just PairPos
lookups (1520).
Handle lookupflag 0 and lookupflag without a value (1540).
- [varLib] In ``load_designspace``, provide a default English name for the
``ital`` axis tag.
- Remove pyftinspect because it is unmaintained and bitrotted.

----------------------------

- [cffLib] Fixed RecursionError when unpickling or deepcopying TTFont with
CFF table (1488, 649dc49).
- [subset] Fixed AttributeError when using --desubroutinize option (1490).
Also, fixed desubroutinizing bug when subrs contain hints (1499).
- [CPAL] Make Color a subclass of namedtuple (173a0f5).
- [feaLib] Allow hyphen in glyph class names.
- [feaLib] Added 'tables' option to __main__.py (1497).
- [feaLib] Add support for special-case contextual positioning formatting
(1501).
- [svgLib] Support converting SVG basic shapes (rect, circle, etc.) into
equivalent SVG paths (1500, 1508).
- [Snippets] Added name-viewer.ipynb Jupyter notebook.

----------------------------

- The previous release accidentally changed several files from Unix to DOS
line-endings. Fix that.

----------------------------

- [varLib] Temporarily revert the fix to ``load_masters()``, which caused a
crash in ``interpolate_layout()`` when ``deepcopy``-ing OTFs.

----------------------------

- [varLib] ``load_masters()`` now actually assigns the fonts it loads to the
source.font attributes.
- [varLib] Fixed an MVAR table generation crash when sparse masters were
involved.
- [voltLib] ``parse_coverage_()`` returns a tuple instead of an ast.Enum.
- [feaLib] A MarkClassDefinition inside a block is no longer doubly indented
compared to the rest of the block.

----------------------------

- [svgLib] Added support for converting elliptical arcs to cubic bezier curves
(1464).
- [py23] Added backport for ``math.isfinite``.
- [varLib] Apply HIDDEN flag to fvar axis if designspace axis has attribute
``hidden=1``.
- Fixed "DeprecationWarning: invalid escape sequence" in Python 3.7.
- [voltLib] Fixed parsing glyph groups. Distinguish different PROCESS_MARKS.
Accept COMPONENT glyph type.
- [feaLib] Distinguish missing value and explicit ``<NULL>`` for PairPos2
format A (1459). Round-trip ``useExtension`` keyword. Implemented
``ValueRecord.asFea`` method.
- [subset] Insert empty widths into hdmx when retaining gids (1458).