OR-554 Templates for external and community request notifications
OR-554 Set nbItems to 1 at least
Merge pull request #466 in OR/rse from OR/rse-chamerling:OR-554 to master

* commit 'b48981b77dbf34f9b3a250967fe50bd8f1a764ab':
  OR-554 Set nbItems to 1 at least
  OR-554 Templates for external and community request notifications