Update es_CL translations
Remove french for now
Merge pull request #53 from lehmannro/master

Modernize layout
Merge branch 'master' of github.com:OpenTechSchool/python-beginners
Add new languages
Update compiled translations
Read contributors from Git.
Add full contact info to license.
Condense contributor list in PDF output.
Merge branch 'master' of github.com:OpenTechSchool/python-beginners
Add language switch to material itself.