Fixed warning. Wrong datatype on parameter (#507)
Fixed warning. Wrong datatype on parameter (#507)

Warning fixed: BlynkSimpleShieldEsp8266.h:45:27: warning: comparison between signed and unsigned integer expressions.

Maybe it's better to change the int free() function to unsigned in free() in BlynkFifo.h instead?
blynkkk/blynk-library,blynkkk/blynk-library,blynkkk/blynk-library,blynkkk/blynk-library,blynkkk/blynk-library