Fix various PEP-8 warnings
Add encoding utf-8 to *.py files
Replace hardcoded packages by find_packages
Update Git ignore list
Fix typos
Consistency: context instead of ctx
Make it possible to transform CSS into style attributes
Remove duplicated code
Consistency: context instead of ctx
Revert "Make it possible to transform CSS into style attributes"

This reverts commit dec139169c48a40844754436a6fd5551a297295a.
Add class InlineCSSTemplateMail
Merge pull request #12 from davidfischer-ch/dev

Fix various PEP-8 warnings (etc)