Put fix from leaflabs into Wire.cpp to replace my fix, and added stub function for setClockDivider into SPI.cpp and .h so that it compiles under 1.5.7

STM32F1XX/libraries/SPI/src/SPI.cpp

@@ -283,6 +283,11 @@ uint8 SPIClass::recv(void) {
     return this->read();
 }
 
+/* Roger Clark. Added stub function so it will compile on 1.5.7 */
+void SPIClass::setClockDivider(uint8_t rate)
+{
+}
+
 /*
  * Auxiliary functions
  */

STM32F1XX/libraries/SPI/src/SPI.h

@@ -243,6 +243,8 @@ public:
 	void beginTransaction(uint8_t pin, SPISettings settings);
 	void endTransaction(void);
 
+	static void setClockDivider(uint8_t);	/* Roger Clark. Added stub function so it will compile on 1.5.7 */
+	
     /*
      * I/O
      */

STM32F1XX/libraries/Wire/Wire.cpp

@@ -133,7 +133,7 @@ uint8 TwoWire::process() {
     i2c_shift_out(sla_addr);
     if (!i2c_get_ack()) 
 	{
-		set_scl(HIGH);// Roger Clark. 20141110 added to set clock high again, as it will be left in a low state otherwise
+		i2c_stop();// Roger Clark. 20141110 added to set clock high again, as it will be left in a low state otherwise
         return ENACKADDR;
     }
     // Recieving
@@ -156,7 +156,7 @@ uint8 TwoWire::process() {
             i2c_shift_out(itc_msg.data[i]);
             if (!i2c_get_ack()) 
 			{
-				set_scl(HIGH);// Roger Clark. 20141110 added to set clock high again, as it will be left in a low state otherwise
+				i2c_stop();// Roger Clark. 20141110 added to set clock high again, as it will be left in a low state otherwise
                 return ENACKTRNS;
             }
             itc_msg.xferred++;