fixed a formatting bug in qse_strtonwad()

renamed qse_httpd_addserver() to qse_httpd_attachserver().
added qse_httpd_detachserver().
added the predetach field to qse_httpd_server_t.
added qse_httpd_cbstd_t and changed qse_htpd_loopstd() to accept this cbstd.
enhanced server uri parsing to include 'docroot'.
enhanced qse_httpd_entasktext() and added qse_httpd_entask_text() for internal use.
added nwif functions like qse_nwifindextombs().
added qse_env_insertmbsa()/qse_env_insertwcsa()/qse_env_inserta().
enhanced TPROXY handling

qse/configure

@@ -16096,12 +16096,13 @@ fi
 
 done
 
-for ac_header in net/if.h
+for ac_header in sys/ioctl.h net/if.h
 do :
-  ac_fn_c_check_header_mongrel "$LINENO" "net/if.h" "ac_cv_header_net_if_h" "$ac_includes_default"
-if test "x$ac_cv_header_net_if_h" = xyes; then :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
-#define HAVE_NET_IF_H 1
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
 
 fi