patch conf.py for non-ascii in documentation

Prevents this error with make html:

sphinx-build -b html -d _build/doctrees   . _build/html
Running Sphinx v1.6.5
making output directory...
WARNING: the config value 'copyright' is set to a string with non-ASCII characters; this can lead to Unicode errors occurring. Please use Unicode strings, e.g. u'Content'.
WARNING: the config value 'author' is set to a string with non-ASCII characters; this can lead to Unicode errors occurring. Please use Unicode strings, e.g. u'Content'.
loading pickled environment... not yet created

Configuration error:
Invalid latex_documents.author found (might contain non-ASCII chars. Please use u"..." notation instead): ('index', 'LGRToolsetweb-application.tex', 'LGR Toolset web-application Documentation', 'Viag\xc3\xa9nie and Wil Tan', 'manual')
make: *** [html] Error 1

doc/conf.py

@@ -47,8 +47,8 @@
 
 # General information about the project.
 project = 'LGR Toolset Web Application'
-copyright = '2016, Viagénie and Wil Tan'
-author = 'Viagénie and Wil Tan'
+copyright = u'2016, Viagénie and Wil Tan'
+author = u'Viagénie and Wil Tan'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -226,7 +226,7 @@
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
     (master_doc, 'LGRToolsetweb-application.tex', 'LGR Toolset web-application Documentation',
-     'Viagénie and Wil Tan', 'manual'),
+     u'Viagénie and Wil Tan', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of