+ Moved the History.txt file from the website git repo into the source code SVN repo.

+ Added xTaskCatchUpTicks() which corrects the tick count value after the application code has held interrupts disabled for an extended period.
+ Updated the xTaskResumeAll() implementation so it uses the new xTaskCatchUpTicks() function mentioned above to unwind ticks that were pended while the scheduler was suspended.
+ Various maintenance on the message buffer, stream buffer and abort delay demos.
+ Change type of uxPendedTicks from UBaseType_t to TickType_t to ensure it has same type as variables it is compared to, and therefore also rename the variable xPendingTicks.
+ Correct spelling mistake within a comment that was common to all the ARMv7-M ports.

FreeRTOS/Demo/Common/Minimal/AbortDelay.c

@@ -430,7 +430,7 @@ static void prvTestAbortingStreamBufferReceive( void )
 {
 TickType_t xTimeAtStart;
 StreamBufferHandle_t xStreamBuffer;
-EventBits_t xReturn;
+size_t xReturn;
 const size_t xTriggerLevelBytes = ( size_t ) 1;
 uint8_t uxRxData;