[wiki:sfDoctrineActAsTaggablePlugin]: filter tags array for empty tags
[wiki:sfDoctrineActAsTaggablePlugin]: filter tags array for empty tags

git-svn-id: 14431f16c86e063b591b7186ad64c5043b5760e0@27433 ee427ae8-e902-0410-961c-c3ed070cd9f9

Symfony-Plugins/sfDoctrineActAsTaggablePlugin,Symfony-Plugins/sfDoctrineActAsTaggablePlugin