cb: fix generation filter options from news categories

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ke_search/trunk@81734 735d13b6-9817-0410-8766-e36946ffe9aa
* bugfix: fix indexing of files protected by naw_securedl extension by using the getForLocalProcessing property, not the publicUri property.
* feature: add error reporting for indexer (use $this->addError() function to add errors).

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ke_search/trunk@81742 735d13b6-9817-0410-8766-e36946ffe9aa