Ir esp8266 lib update and code impacts (#235)

* integrate new IRremoteESP8266 lib 2.4.2 and add new protocols

IR_RC6
IR_MITSUBISHI
IR_GICABLE
IR_MITSUBISHI2
IR_LASERTAG
IR_CARRIER_AC
IR_MIDEA
IR_NIKAI
IR_SHERWOOD
IR_DENON
IR_AIWA_RC_T501
IR_JVC

lib/IRremoteESP8266/src/ir_Aiwa.cpp

@@ -2,7 +2,6 @@
 
 #include "IRrecv.h"
 #include "IRsend.h"
-#include "IRtimer.h"
 
 //                         AAA   IIIII  W   W   AAA
 //                        A   A    I    W   W  A   A
@@ -22,7 +21,7 @@
 #define AIWA_RC_T501_POST_DATA          1ULL
 
 #if SEND_AIWA_RC_T501
-// Send a Aiwa RC T501 formatted message.
+// Send an Aiwa RC T501 formatted message.
 //
 // Args:
 //   data:   The message to be sent.