Allow mutex type semaphores to be given from an interrupt (not a normal thing to do - use a binary semaphore!).

Allow FreeRTOS+CLI commands to have spaces at the end without it being taken as a parameter.

FreeRTOS-Plus/FreeRTOS-Plus-CLI/FreeRTOS_CLI.c

@@ -253,6 +253,11 @@ const int8_t *pcReturn = NULL;
 					pcCommandString++;
 				}
 
+				if( *pxParameterStringLength == 0 )
+				{
+					pcReturn = NULL;
+				}
+
 				break;
 			}
 		}

FreeRTOS/Source/queue.c

@@ -874,7 +874,9 @@ xTimeOutType xTimeOut;
 							if( pxQueue->uxQueueType == queueQUEUE_IS_MUTEX )
 							{
 								portENTER_CRITICAL();
+								{
 									vTaskPriorityInherit( ( void * ) pxQueue->pxMutexHolder );
+								}
 								portEXIT_CRITICAL();
 							}
 						}

FreeRTOS/Source/tasks.c

@@ -2382,8 +2382,10 @@ tskTCB *pxNewTCB;
 	{
 	tskTCB * const pxTCB = ( tskTCB * ) pxMutexHolder;
 
-		configASSERT( pxMutexHolder );
-
+		/* If the mutex was given back by an interrupt while the queue was
+		locked then the mutex holder might now be NULL. */
+		if( pxMutexHolder != NULL )
+		{
 			if( pxTCB->uxPriority < pxCurrentTCB->uxPriority )
 			{
 				/* Adjust the mutex holder state to account for its new priority. */
@@ -2408,6 +2410,7 @@ tskTCB *pxNewTCB;
 				traceTASK_PRIORITY_INHERIT( pxTCB, pxCurrentTCB->uxPriority );
 			}
 		}
+	}
 
 #endif
 /*-----------------------------------------------------------*/