Log Message:
Release 1.6.2:

Incompatible changes
* 3789: Do not require typing module for python>=3.5

Bugs fixed
* 3754: HTML builder crashes if HTML theme appends own stylesheets
* 3756: epub: Entity ‘mdash’ not defined
* 3758: Sphinx crashed if logs are emitted in conf.py
* 3755: incorrectly warns about dedent with literalinclude
* 3742: RTD PDF builds of Sphinx own docs are missing an index entry in the \ 
bookmarks and table of contents. This is rtfd/readthedocs.org-2857 issue, a \ 
workaround is obtained using some extra LaTeX code in Sphinx’s own conf.py
* 3770: Build fails when a “code-block” has the option emphasize-lines \ 
and the number indicated is higher than the number of lines
* 3774: Incremental HTML building broken when using citations
* 3772: ‘str object’ has no attribute ‘filename’
* 3763: got epubcheck validations error if epub_cover is set
* 3779: ‘ImportError’ in sphinx.ext.autodoc due to broken \ 
‘sys.meta_path’. Thanks to Tatiana Tereshchenko.
* 3796: env.resolve_references() crashes when non-document node given
* 3803: Sphinx crashes with invalid PO files
* 3791: PDF “continued on next page” for long tables isn’t \ 
internationalized
* 3788: smartquotes emits warnings for unsupported languages
* 3807: latex Makefile for make latexpdf is only for unixen
* 3781: double hyphens in option directive are compiled as endashes
* 3817: latex builder raises AttributeError