ZF-4662: Zend_Search_Lucene_Search_Query::highlightMatches does not allow override of colors to be used


Because property $_highlightcolors is defined private, there is no way to choose which colors are going to be used for coloring the highlights. This property should not be private, or an overriding method should be supplied to set which colors should be used.


Duplicates [ZF-1788]

Done for ZF 1.8.0