YH-382: Initial service channels
Merge branch 'YH-383'

Conflicts:
	modules/ckanext-ytp-main/i18n/ckanext-ytp-main.pot
	modules/ckanext-ytp-main/i18n/fi/LC_MESSAGES/ckanext-ytp-main.po
	modules/ckanext-ytp-main/i18n/sv/LC_MESSAGES/ckanext-ytp-main.po
	modules/ytp-assets-common/src/less/forms.less