Use correct separator in keywords.txt

The Arduino IDE currently requires the use of a tab separator between the name and identifier. Without this tab the keyword is not highlighted.

Reference:
https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification#keywords

Author: per1234

keywords.txt

@@ -119,7 +119,7 @@ xSemaphoreCreateCountingStatic 		KEYWORD2
 xSemaphoreCreateMutex 				KEYWORD2
 xSemaphoreCreateMutexStatic 		KEYWORD2
 xSemaphoreCreateRecursiveMutex 		KEYWORD2
-xSemaphoreCreateRecursiveMutexStatic KEYWORD2
+xSemaphoreCreateRecursiveMutexStatic 	KEYWORD2
 vSemaphoreDelete 					KEYWORD2
 uxSemaphoreGetCount 				KEYWORD2
 xSemaphoreGetMutexHolder 			KEYWORD2
@@ -198,7 +198,7 @@ configSUPPORT_DYNAMIC_ALLOCATION 		LITERAL1
 configSUPPORT_STATIC_ALLOCATION 		LITERAL1
 configGENERATE_RUN_TIME_STATS 			LITERAL1
 configIDLE_SHOULD_YIELD 				LITERAL1
-configINCLUDE_APPLICATION_DEFINED_PRIVILEGED_FUNCTIONS LITERAL1
+configINCLUDE_APPLICATION_DEFINED_PRIVILEGED_FUNCTIONS 	LITERAL1
 configKERNEL_INTERRUPT_PRIORITY 		LITERAL1
 configMAX_SYSCALL_INTERRUPT_PRIORITY 	LITERAL1
 configMAX_API_CALL_INTERRUPT_PRIORITY 	LITERAL1
@@ -207,7 +207,7 @@ configMAX_PRIORITIES 					LITERAL1
 configMAX_TASK_NAME_LEN 				LITERAL1
 configMAX_SYSCALL_INTERRUPT_PRIORITY 	LITERAL1
 configMINIMAL_STACK_SIZE 				LITERAL1
-configNUM_THREAD_LOCAL_STORAGE_POINTERS LITERAL1
+configNUM_THREAD_LOCAL_STORAGE_POINTERS 	LITERAL1
 configQUEUE_REGISTRY_SIZE 				LITERAL1
 configSUPPORT_STATIC_ALLOCATION 		LITERAL1
 configTIMER_QUEUE_LENGTH 				LITERAL1
@@ -224,7 +224,7 @@ configUSE_IDLE_HOOK 					LITERAL1
 configUSE_MALLOC_FAILED_HOOK 			LITERAL1
 configUSE_MUTEXES 						LITERAL1
 configUSE_NEWLIB_REENTRANT 				LITERAL1
-configUSE_PORT_OPTIMISED_TASK_SELECTION LITERAL1
+configUSE_PORT_OPTIMISED_TASK_SELECTION 	LITERAL1
 configUSE_PREEMPTION 					LITERAL1
 configUSE_QUEUE_SETS 					LITERAL1
 configUSE_RECURSIVE_MUTEXES 			LITERAL1