add atende simplescase. closes #99.
Delete bottom-logos.png
Move atendessimples.html to cases/atendesimples.html
Improve head to allow custom keywords on each page or use default ones
External links should open in a new tab
Remove unnecessary white spaces and blank lines
Some front-end adjusments
Fix typos
Change description
add en/cases/atendesimples page
Grammar corrections
Bye badaui
Track user navigation on servicos/mvp
Add 404 page to english version
Added zipcodes
Update @dirs name
Updated form field label to add Skype or Telephone
Merge pull request #128 from Helabs/case-atendesimples

Add atendesimples case. Closes #99.