Update CHANGELOG.md
Merge branch 'master' into bump_0.6.5
Bump to version 0.6.5
Merge pull request #2428 from dotcloud/bump_0.6.5

Bump to version 0.6.5
Hotfix: Migrate public mappings after upgrade
continue build on expose with :, but displays a warning
improve error message
fix remove root name and fix error messages
fix typos
Update links and host integration documentation
fix warning in build
set containers comm to true by default
Merge branch 'release' back to master