rotation of image log files implemented

improved rotation of message log files
implement deletion of temp images before start new flow
a little bit code cleaning

code/lib/jomjol_helper/Helper.h

@@ -18,6 +18,7 @@ bool ctype_space(const char c, string adddelimiter);
 string getFileType(string filename);
 
 int mkdir_r(const char *dir, const mode_t mode);
+int removeFolder(const char* folderPath, const char* logTag);
 
 string toUpper(string in);