Prepared windows port by removing a number of spurious reference to unix-specific interfaces, and using some xapian posix adaptor includes

src/query/recollq.cpp

@@ -18,16 +18,13 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#include <unistd.h>
 #include <errno.h>
 #include <string.h>
-#include <sys/stat.h>
 #include <limits.h>
 
 #include <iostream>
 #include <list>
 #include <string>
-using namespace std;
 
 #include "rcldb.h"
 #include "rclquery.h"
@@ -43,6 +40,8 @@ using namespace std;
 #include "smallut.h"
 #include "base64.h"
 
+using namespace std;
+
 bool dump_contents(RclConfig *rclconfig, Rcl::Doc& idoc)
 {
     FileInterner interner(idoc, rclconfig, FileInterner::FIF_forPreview);