Log Message:
Release 1.6.3:

Features added
--------------
* latex: hint that code-block continues on next page

Bugs fixed
----------
* Failed to import sphinx.util.compat with docutils-0.14rc1
* sphinx-quickstart template is incomplete regarding use of alabaster
* 'str object' has no attribute 'filename'
* Emit wrong warnings if citation label includes hyphens
* Some warnings are not colored when using --color option
* Remove unwanted whitespace in default template
* sphinx.ext.imgmath fails to convert SVG images if project directory
  name contains spaces
* Fix color handling in make mode's help command
* use of self.env.warn in sphinx extension fails
* production lists apply smart quotes transform since Sphinx 1.6.1
* latex: fix ``\sphinxbfcode`` swallows initial space of argument
* Quotes in auto-documented class attributes should be straight quotes
  in PDF output
* LaTeX figure floated to next page sometimes leaves extra vertical
  whitespace
* duplicated footnotes raises IndexError
* Failure of deprecation warning mechanism of
  ``sphinx.util.compat.Directive``
* Bogus warnings for "citation not referenced" for cross-file citations
* Don't download images when builders not supported images
* Remote image URIs without filename break builders not supported remote
  images
* command line messages are translated unintentionally with ``language``
  setting.
* make checking ``epub_uid`` strict
* Fix about box drawing characters for PDF output
* autosummary could not find methods
* Emit error if ``latex_documents`` contains non-unicode string in py2