Fix regression from getSelectCountSql optimization when collection us…

[colinmollenhour]

See #2210

Skips optimization if bound parameters are found in any join conditions.

[colinmollenhour]

Hold up.. this needs to account for the fact that bind params can be set with and without the leading ':'..

[colinmollenhour]

Should be good now. 😄

[kiatng]

Tested:

        $collection = Mage::getResourceModel('directory/region_collection');
        $collection->addBindParam('id2', 'MY');
        $collection->getSelect()->where('main_table.country_id = :id2');

        $sql = $collection->getSelectCountSql();

        $result = [
            $sql->__toString(),
            $collection->getSize(),
            $collection->toArray(),
        ]