Merge branch 'v1.7' into master

mkdocs.yml

@@ -16,14 +16,11 @@ theme:
   include_sidebar: true
   favicon: img/traefik.icon.png
   logo: img/traefik.logo.png
-  palette:
-    primary: 'blue'
-    accent: 'light blue'
-  feature:
-    tabs: false
   palette:
     primary: 'cyan'
     accent: 'cyan'
+  feature:
+    tabs: false
   i18n:
     prev: 'Previous'
     next: 'Next'
@@ -45,7 +42,7 @@ google_analytics:
 #    - type: 'slack'
 #      link: 'https://slack.traefik.io'
 #    - type: 'twitter'
-#      link: 'https://twitter.com/traefikproxy'
+#      link: 'https://twitter.com/traefik'
 
 extra_css:
   - theme/styles/extra.css