Merge pull request #313 from noesya/6.0-buttons

assets/js/theme/design-system/mainMenu.js

assets/sass/_theme/_configuration.sass

assets/sass/_theme/_variables.sass

assets/sass/_theme/blocks/call_to_action.sass

assets/sass/_theme/design-system/button.sass

assets/sass/_theme/design-system/form.sass

assets/sass/_theme/design-system/header.sass

assets/sass/_theme/design-system/hero.sass

assets/sass/_theme/design-system/table_of_contents.sass

assets/sass/_theme/design-system/typography.sass

assets/sass/_theme/sections/diplomas.sass

assets/sass/_theme/sections/programs.sass

assets/sass/_theme/utils/grid.sass

assets/sass/_theme/utils/icons.sass

layouts/partials/commons/image.html

layouts/partials/header/button.html

layouts/partials/programs/essential.html

layouts/partials/publications/downloads.html

static/assets/fonts/fonticons/IconFont.ttf

static/assets/fonts/fonticons/IconFont.woff