fix for newsletter article publish date
Related news and publications only on articles
Merge pull request #225 from claudiaifrim/fix_newsletter_item_template

fix for newsletter article publish date
Changed unsubscribe block
Added distinct query for TMGMT node selection
Merge pull request #226 from eugenst/distinct_tmgmt

Added distinct query for TMGMT node selection
Merge branch 'newsletter_unsubscribe' into develop