added support for PreparedQuery, which bypasses come of Sitecore's query rewriting
don't index lookup field values if they contain null values
Fix SearchHits.FetchResults second parameter (end vs count)
allow search for multiple templates

the code was provided by Thomas Lin.
http://corecompetency.tohams.com/index.php/adding-or-to-the-template-filter-of-advanced-database-crawler/

It allows you to search for items of multiple template id's
register _alltemplates field in configuration, config file cleanup, minor demo page cleanup
updated readme and empty references folder
updated filters
updated welcome ;-)
Merge pull request #12 from techphoria414/lookup-null-target-fix

don't index lookup field values if they contain null values
Merge commit 'f35566310d5193f5c0df12598e751a7aa6e51f1b'
Minor cleanup of the LookupFieldCrawler
Merge pull request #19 from markstiles/master

allow search for multiple templates
_alltemplates field has to be configured as TOKENIZED. Storage is not important, so set STORE=NO
minor cleanup of the multi template filter
Merge pull request #18 from ambrauer/master

Fix SearchHits.FetchResults second parameter (end vs count)
minor formatting tweaks
Merge pull request #6 from techphoria414/prepared-query

added support for PreparedQuery, which bypasses come of Sitecore's query...
Merge commit '88a654007a992205417114ae0dd9f7db8bba0b03'
bug nasty bug where the version coming from the index is different to the version published to the Delivery database (which occurs during the time where the database is updated, but index has not been updated).
Enhanced multifield crawling