Log Message:
py-sphinx: updated to 1.6.5

Release 1.6.5:

Features added
* 4107: Make searchtools.js compatible with pre-Sphinx1.5 templates
* 4112: Don't override the smart_quotes setting if it was already set
* 4125: Display reference texts of original and translated passages on
  i18n warning message
* 4147: Include the exception when logging PO/MO file read/write

Bugs fixed
* 4085: Failed PDF build from image in parsed-literal using ``:align:`` option
* 4100: Remove debug print from autodoc extension
* 3987: Changing theme from alabaster causes HTML build to fail
* 4096: C++, don't crash when using the wrong role type. Thanks to mitya57.
* 4070, 4111: crashes when the warning message contains format strings (again)
* 4108: Search word highlighting breaks SVG images
* 3692: Unable to build HTML if writing .buildinfo failed
* 4152: HTML writer crashes if a field list is placed on top of the document
* 4063: Sphinx crashes when labeling directive ``.. todolist::``
* 4134: [doc] :file:`docutils.conf` is not documented explicitly
* 4169: Chinese language doesn't trigger Chinese search automatically
* 1020: ext.todo todolist not linking to the page in pdflatex
* 3965: New quickstart generates wrong SPHINXBUILD in Makefile
* 3739: ``:module:`` option is ignored at content of pyobjects
* 4149: Documentation: Help choosing :confval:`latex_engine`
* 4090: [doc] :confval:`latex_additional_files` with extra LaTeX macros should
  not use ``.tex`` extension
* Failed to convert reST parser error to warning