- removed unneeded code from fulltext_mysql [Bug #9947]
- an additional combined index on post_subject and post_text is necessary for fulltext_mysql [Bug #9818]
- added phrase searching support to fulltext_mysql while fixing some minor bugs in the keyword processing code, originally intended to do this about a year ago when I switched from split_words array to search_query string in the search backend interface, so finally it's there
git-svn-id: http://code.phpbb.com/svn/phpbb/trunk@7385 89ea8834-ac86-4346-8a33-228a782c2dd0