Indexer redirects bug fix

@relwell 
Pages that are redirects are now on delete list. We want to have only actual articles in index, but not redirects. 
Example:
http://callofduty.wikia.com/wikia.php?controller=WikiaSearchIndexer&method=get&service=Metadata&ids=3773
http://callofduty.wikia.com/wikia.php?controller=WikiaSearchIndexer&method=get&service=Metadata&ids=2583