Use https for links

Signed-off-by: Michal Čihař <michal@cihar.com>

Author: nijel

data/themes.py

@@ -110,7 +110,7 @@
             "Silk" is a smooth theme designed to be clear and easy for the
             eyes, based on <a href="http://famfamfam.com/lab/icons/silk/">
             Silk icons</a> by Mark James which is licensed under the
-            <a href="http://creativecommons.org/licenses/by/2.5/">
+            <a href="https://creativecommons.org/licenses/by/2.5/">
             Cc-by-2.5</a>
         ''',
         'author': u'Matthias Mailander',
@@ -166,14 +166,14 @@
     'pixeline-2.10': {
         'name': 'Pixeline',
         'support': '2.9 - 2.10',
-        'info': u'By <a href="http://www.pixeline.be">Pixeline</a>.',
+        'info': u'By <a href="https://pixeline.be/">Pixeline</a>.',
         'author': u'Pixeline',
         'ignore': True,
     },
     'pixeline-2.11a': {
         'name': 'Pixeline',
         'support': '2.11',
-        'info': u'By <a href="http://www.pixeline.be">Pixeline</a>.',
+        'info': u'By <a href="https://pixeline.be/">Pixeline</a>.',
         'author': u'Pixeline',
         'ignore': True,
     },

pmaweb/tests.py

@@ -138,7 +138,7 @@ def test_news_planet(self):
         self.cdn_tester(
             Planet,
             ['/'],
-            title='title', url='http://example.net/',
+            title='title', url='https://example.net/',
             date=make_aware(
                 datetime.datetime(year=2000, month=1, day=1), utc
             ),