Merge pull request traefik#1435 from containous/prepare-release-v1.2.3

Prepare release v1.2.3

Merge pull request traefik#1420 from containous/prepare-release-v1.2.2

Prepare release v1.2.2

Merge pull request traefik#1349 from containous/prepare-release-v1.2.1

Prepare release v1.2.1

Merge pull request traefik#1318 from containous/prepare-release-v1.2.0

Prepare release v1.2.0

Merge pull request traefik#1204 from containous/prepare-release-v1.2.…

…0-rc2

Prepare release v1.2.0 rc2

Merge pull request traefik#1128 from containous/fix-travis-deploy

Fix travis deploy

Merge pull request traefik#974 from containous/prepare-release-v1.1.2

Prepare release v1.1.2

Merge pull request traefik#915 from containous/prepare-release-v1.1.1

Prepare release v1.1.1

Merge pull request traefik#856 from containous/prepare-release-v1.1.0

Changelog v1.1.0

Merge pull request traefik#823 from containous/fix-mkdoc-theme

Fix mkdoc theme