Log Message:
py-sphinx-rtd-theme: updated to 0.3.0

0.3.0 Release

New Features
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* Add html language attribute
* Allow setting 'rel' and 'title' attributes for stylesheets
* Add option to style external links
* Add github, gitlab, bitbucket page arguments option
* Add pygments support
* Add setuptools entry point allowing to use ``sphinx_rtd_theme`` as
  Sphinx ``html_theme`` directly.
* Add language to the JS output variable

Fixes
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* Fix some HTML warnings and errors
* Fix many styling issues
* Fix many sidebar glitches
* Fix line number spacing to align with the code lines
* Hide Edit links on auto created pages
* Include missing font files with the theme

Other Changes
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* Significant improvement of our documentation
* Compress our Javascript files
* Updated dependencies