Moved docsToPaths() method from confindexer to function in rcldoc to simplify linking. confindexer.o not in librecoll any more.+small std namespace fixes

src/qtgui/rclm_idx.cpp

@@ -428,7 +428,7 @@ void RclMain::updateIdxForDocs(vector<Rcl::Doc>& docs)
     }
 	
     vector<string> paths;
-    if (ConfIndexer::docsToPaths(docs, paths)) {
+    if (Rcl::docsToPaths(docs, paths)) {
 	vector<string> args{"-c", theconfig->getConfDir(), "-e", "-i"};
 	args.insert(args.end(), paths.begin(), paths.end());
 	m_idxproc = new ExecCmd;

src/qtgui/reslist.cpp

@@ -236,7 +236,7 @@ string QtGuiResListPager::iconUrl(RclConfig *config, Rcl::Doc& doc)
 	vector<Rcl::Doc> docs;
 	docs.push_back(doc);
 	vector<string> paths;
-	ConfIndexer::docsToPaths(docs, paths);
+	Rcl::docsToPaths(docs, paths);
 	if (!paths.empty()) {
 	    string path;
 	    LOGDEB2("ResList::iconUrl: source path [" << paths[0] << "]\n");

src/qtgui/restable.cpp

@@ -117,7 +117,7 @@ string ResTablePager::iconUrl(RclConfig *config, Rcl::Doc& doc)
 	vector<Rcl::Doc> docs;
 	docs.push_back(doc);
 	vector<string> paths;
-	ConfIndexer::docsToPaths(docs, paths);
+        Rcl::docsToPaths(docs, paths);
 	if (!paths.empty()) {
 	    string path;
 	    if (thumbPathForUrl(cstr_fileu + paths[0], 128, path)) {