Scheduled weekly dependency update for week 39

[pyup-bot]

Update fonttools from 4.14.0 to 4.15.0.

Changelog

### 4.15.0 ``` ---------------------------- - [plistlib] Added typing annotations to plistlib module. Set up mypy static typechecker to run automatically on CI (2061). - [ttLib] Implement private ``Debg`` table, a reverse-DNS namespaced JSON dict. - [feaLib] Optionally add an entry into the ``Debg`` table with the original lookup name (if any), feature name / script / language combination (if any), and original source filename and line location. Annotate the ttx output for a lookup with the information from the Debg table (2052). - [sfnt] Disabled checksum checking by default in ``SFNTReader`` (2058). - [Docs] Document ``mtiLib`` module (2027). - [varLib.interpolatable] Added checks for contour node count and operation type of each node (2054). - [ttLib] Added API to register custom table packer/unpacker classes (2055). ```

Links

- PyPI: https://pypi.org/project/fonttools - Changelog: https://pyup.io/changelogs/fonttools/ - Repo: http://github.com/fonttools/fonttools

[codecov[bot]]

Codecov Report

Merging #210 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #210   +/-   ##
=======================================
  Coverage   88.25%   88.25%           
=======================================
  Files          13       13           
  Lines        2308     2308           
  Branches      303      303           
=======================================
  Hits         2037     2037           
  Misses        193      193           
  Partials       78       78           

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[pyup-bot]

Closing this in favor of #211