Fix Articles container > articles grid buttons
Fix import window, removed height needs a check in 2.2.x for undesired effects
Fix missing close button for special articles tag field
Add missing primary-button class to article update actionbar
More 2.3 Fixes

* origin/pr/99:
  Add missing primary-button class to article update actionbar
  Fix missing close button for special articles tag field
  Fix import window, removed height needs a check in 2.2.x for undesired effects
  Fix Articles container > articles grid buttons