added code for unac to perform pure case-folding

src/rcldb/rclquery.cpp

@@ -117,7 +117,7 @@ public:
 	// approach to collating...)
 	string sortterm;
 	// We're not even sure the term is utf8 here (ie: url)
-	if (!unacmaybefold(term, sortterm, "UTF-8", true)) {
+	if (!unacmaybefold(term, sortterm, "UTF-8", UNACOP_UNACFOLD)) {
 	    sortterm = term;
 	}
 	// Also remove some common uninteresting starting characters

src/rcldb/stoplist.cpp

@@ -41,7 +41,7 @@ bool StopList::setFile(const string &filename)
     for (set<string>::iterator it = stops.begin(); 
 	 it != stops.end(); it++) {
 	string dterm;
-	unacmaybefold(*it, dterm, "UTF-8", true);
+	unacmaybefold(*it, dterm, "UTF-8", UNACOP_UNACFOLD);
 	m_stops.insert(dterm);
     }
 

src/rcldb/termproc.h

@@ -117,7 +117,7 @@ public:
     {
 	m_totalterms++;
 	string otrm;
-	if (!unacmaybefold(itrm, otrm, "UTF-8", true)) {
+	if (!unacmaybefold(itrm, otrm, "UTF-8", UNACOP_UNACFOLD)) {
 	    LOGDEB(("splitter::takeword: unac [%s] failed\n", itrm.c_str()));
 	    m_unacerrors++;
 	    // We don't generate a fatal error because of a bad term,