fix exception handling
now only one exception dialog is displayed, if many same type exceptions handled (like in #16), and bug reports files always save after exception, not only after pressing "OK" button in exception dialog, closes #17
int CheckRetainBuffer(void){ return 1;}void ValidateRetainBuffer(void){}void InValidateRetainBuffer(void){}void Retain(unsigned int offset, unsigned int count, void *p){}void Remind(unsigned int offset, unsigned int count, void *p){}