ASolrSort method declaration in E_STRICT error mode

[cjaegle]

I get the following error message when using a AsolrDataProvider in PHP E_STRICT error mode:

Declaration of ASolrSort::getOrderBy() should be compatible with that of CSort::getOrderBy()

I guess adding a parameter would fix this:

public function getOrderBy($criteria=null)
{
    throw new CException('Solr sorting does not support ORDER BY');
}

[denis-sanches]

Fixed on this commit.