Merge pull request #478 from noesya/feature/blocks-contact-programs

app/assets/images/communication/blocks/templates/contact.jpg

...assets/images/communication/blocks/templates/programs.jpg

app/models/communication/block.rb

app/models/communication/block/component/program.rb

app/models/communication/block/component/time_slot.rb

app/models/communication/block/template/contact.rb

app/models/communication/block/template/contact/element.rb

app/models/communication/block/template/program.rb

app/models/communication/block/template/program/element.rb

app/models/communication/website/with_style.rb

...ommunication/blocks/components/add_element/_edit.html.erb

...in/communication/blocks/components/program/_edit.html.erb

...communication/blocks/components/program/_preview.html.erb

.../communication/blocks/components/program/_static.html.erb

.../communication/blocks/components/time_slot/_edit.html.erb

...mmunication/blocks/components/time_slot/_preview.html.erb

...ommunication/blocks/components/time_slot/_static.html.erb

...min/communication/blocks/templates/contact/_edit.html.erb

.../communication/blocks/templates/contact/_preview.html.erb

...n/communication/blocks/templates/contact/_static.html.erb