Remove Fedora build dependency on a compatibility build of Django

Also, use python3-sphinx on Fedora

python-semantic_version.spec

@@ -7,7 +7,7 @@
 
 Name:           python-%{pypi_name}
 Version:        2.6.0
-Release:        7%{?dist}
+Release:        8%{?dist}
 Summary:        Library implementing the 'SemVer' scheme
 
 License:        BSD
@@ -29,7 +29,7 @@ BuildRequires:  python-setuptools
 BuildRequires:  python2-django
 %else
 BuildRequires:  python2-setuptools
-BuildRequires:  python2-django1.11
+# Django doesn't have Python 2 support since 2.0
 %endif
 %{?python_provide:%python_provide python2-%{pypi_name}}
 Provides:       python-semantic-version
@@ -53,7 +53,11 @@ Python 3 version
 
 %package doc
 Summary:        Documentation for python-%{pypi_name}
+%if %{with python3}
+BuildRequires:  python3-sphinx
+%else
 BuildRequires:  python-sphinx
+%endif
 
 %description doc
 %{summary}.
@@ -108,6 +112,10 @@ rm -rf html/.{doctrees,buildinfo}
 %doc html
 
 %changelog
+* Tue Jan 08 2019 Petr Viktorin <pviktori@redat.com> - 2.6.0-8
+- Remove Fedora build dependency on a compatibility build of Django
+- Use python3-sphinx on Fedora
+
 * Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 2.6.0-7
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild