remove Request::post_tab and add Request::http_status

Instead of Reqest::post_tab we use now Request::post_in (pt::Space).

Request::http_status will be used instead Request::status,
but at the moment is not changed in all places.
Request::status has been marked as depracated.

While here:
- Check for root dir in App and not in FunctionParser,
let FunctionParser only log the root dir.
- Read post variables after parsing url parameters,
this allows winix functions to set limits
for post input.
- Set limits when parsing input json format, new
options added to config: post_max_object_items, post_max_table_items,
post_max_all_items, post_max_nested_objects.
There are similar options in each winix function (they are in
FunctionBase).
- Some refactoring in App.
- Add config option: log_whole_http_post if true
then the whole parsed post input is logged.
- Add config option: post_json_max - max length of input stream
for parsing json.
- Add config option: templates_request_status, default request_status.html
this is an ezc template used as [content] when the request status
is not 200_ok.
- Fix: Sort winix function didn't show items to sort (fix and do some
refactoring as well)
- Properly sort items in: ImgCrop, Ls, Sort, Upload
- Remove ezc templates: err_404.html, err_per_denied.html - now
request_status.html is used.

winixd/core/header.h

@@ -36,6 +36,7 @@
 #define headerfile_winix_core_header
 
 #include "log.h"
+#include <textstream/textstream.h>
 
 
 namespace Winix
@@ -83,9 +84,63 @@ public:
 	static constexpr const wchar_t * text_javascript_utf8		= L"text/javascript; charset=UTF-8";
 
 
+	static const int status_200_ok = 200;
+	static const int status_300_multiple_choices = 300;
+	static const int status_301_moved_permanently = 301;
+	static const int status_302_found = 302;
+	static const int status_303_see_other = 303;
+	static const int status_307_temporary_redirect = 307;
+	static const int status_400_bad_request = 400;
+	static const int status_403_forbidden = 403;
+	static const int status_404_not_found = 404;
+	static const int status_414_uri_too_long = 414;
+	static const int status_500_internal_server_error = 500;
+
+
+	static constexpr const wchar_t * str_status_200		= L"OK";
+	static constexpr const wchar_t * str_status_300		= L"Multiple Choices";
+	static constexpr const wchar_t * str_status_301		= L"Moved Permanently";
+	static constexpr const wchar_t * str_status_302		= L"Found";
+	static constexpr const wchar_t * str_status_303		= L"See Other";
+	static constexpr const wchar_t * str_status_307		= L"Temporary Redirect";
+	static constexpr const wchar_t * str_status_400		= L"Bad Request";
+	static constexpr const wchar_t * str_status_403		= L"Forbidden";
+	static constexpr const wchar_t * str_status_404		= L"Not Found";
+	static constexpr const wchar_t * str_status_414		= L"URI Too Long";
+	static constexpr const wchar_t * str_status_500		= L"Internal Server Error";
+
+
+	static const wchar_t * find_status_string_value(int http_status);
+	static void prepare_status_value(int http_status, pt::WTextStream & value, bool clear_value = true);
+
+
+protected:
+
+
+	struct StatusIntStringMapHelper
+	{
+		int status_int;
+		const wchar_t * status_str;
+	};
+
+	static constexpr StatusIntStringMapHelper status_int_string_map[] = {
+		{status_200_ok, str_status_200},
+		{status_300_multiple_choices, str_status_300},
+		{status_301_moved_permanently, str_status_301},
+		{status_302_found, str_status_302},
+		{status_303_see_other, str_status_303},
+		{status_307_temporary_redirect, str_status_307},
+		{status_400_bad_request, str_status_400},
+		{status_403_forbidden, str_status_403},
+		{status_404_not_found, str_status_404},
+		{status_414_uri_too_long, str_status_414},
+		{status_500_internal_server_error, str_status_500},
+	};
+
 };
 
 
+
 class HeaderValue
 {
 public: