Merge pull request #207 from Tocacar/master

Removing validate method on SpeakerAdmin class
Edit text in blue strip to reflect multi-language support
Merge pull request #210 from Tocacar/issue-171

Edit text in blue strip to reflect multi-language support
Merge branch 'master' of https://github.com/protalk/protalk into vagrant
Add protalk-specific config files for puppet
Merge branch 'vagrant' of https://github.com/Tocacar/protalk into vagrant