Merge branch 'develop' of private/HardFault into master

Core/Src/stm32f1xx_it.c

 /**
   * @brief This function handles Hard fault interrupt.
   */
-#if 0
-void HardFault_Handler(void)
+__WEAK void HardFault_Handler(void)
 {
   /* USER CODE BEGIN HardFault_IRQn 0 */
 
     /* USER CODE END W1_HardFault_IRQn 0 */
   }
 }
-#endif
+
 /**
   * @brief This function handles Memory management fault.
   */

EWARM/startup_stm32f103xb.s

         SECTION CSTACK:DATA:NOROOT(3)
 
         SECTION .intvec:CODE:NOROOT(2)
+
         EXTERN  __iar_program_start
-        EXTERN  SystemInit  
+        EXTERN  SystemInit        
         PUBLIC  __vector_table
         IMPORT SVC_Handler_asm
-    
+
         DATA
 __vector_table
         DCD     sfe(CSTACK)