Version bump, hot fix to FemtoCore.h as ENABLE_SERIAL should stay enabled by default

Author: zrecore

libraries/FemtoCore/FemtoCore.h

@@ -17,7 +17,7 @@
     #include <RTCZero.h>
 
 
-    // #define ENABLE_SERIAL       // We want serial USB output.
+    #define ENABLE_SERIAL       // We want serial USB output.
     // #define DEBUG               // We also want to see debug serial output.
 
     #ifndef FEMTO_SERIAL_BAUD_RATE

platform.txt

@@ -20,7 +20,7 @@
 # https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5---3rd-party-Hardware-specification
 
 name=Atmel SAM D21/R21 E
-version=1.8.3
+version=1.8.4
 
 # Compile variables
 # -----------------