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/functions/functionparser.h

@@ -55,6 +55,11 @@ class FunctionParser : public WinixModelDeprecated
 public:
 
 	FunctionParser();
+
+
+	/*
+	 * if the method returns false then cur->request->http_status will be already set to a specific error
+	 */
 	bool Parse(Cur * pcur, Db * pdb, Functions * pfunctions, System * psystem);
 
 private:
@@ -69,17 +74,19 @@ private:
 	std::string name_ascii, value_ascii;
 	Item * last_dir;
 	Param param;
+	bool status;
 
 	void SkipSlashes();
 
-	void ParseDirsItemFunction();
+	void PrintCurrentDirs();
+	bool ParseDirsItemFunction();
 	void ParseParams();
 	void ParseAnchor();
 
 	bool IsDir();
 	bool CheckAddItem();
 	bool CheckAddFunction();
-	bool AddRootDir();
+	void LogDir(Item * dir);
 	void AddDir();
 	void AddParam();
 	void ParseOrdinaryParams();