Fixed: Event Notification ArticleSend Loop (bug#10428).
Squashed commit of the following:

commit 64d36f63d7114d3ff39716b039b53c091d1adcd3
Author: s7design <otrs@s7designcreative.com>
Date:   Tue Apr 15 13:39:18 2014 +0200

    improve code

commit 3a3448ecbc4f4031a4a8a3cb26afb3627b033deb
Author: s7design <otrs@s7designcreative.com>
Date:   Tue Apr 15 13:31:39 2014 +0200

    improved code

commit 6c03572da55fc8b5ea0ab340266bdbf2f497a899
Author: s7design <otrs@s7designcreative.com>
Date:   Tue Apr 15 11:37:13 2014 +0200

    Corrected and cleaned code

commit a624d66f8a8bc755ed96e2084da01258116f4b40
Author: s7design <otrs@s7designcreative.com>
Date:   Fri Apr 11 18:57:35 2014 +0200

    [Bug 10441] Eventbased notification - infinite loop

    Changed logic for ArticleCreate event

    When the ArticleCreate filter is selected, the selection
    of at least one critierion in the article filters should be enforced.