DM: add m4?

deanm1278 · deanm1278 · commit fb36ae6c8c6e · 2018-04-12T14:45:50.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -25,6 +25,7 @@ script:
   - build_platform adafruit:samd:adafruit_gemma_m0
   - build_platform adafruit:samd:adafruit_trinket_m0
   - build_platform adafruit:samd:adafruit_itsybitsy_m0
+  - build_platform adafruit:samd:adafruit_metro_m4
 
 
 branches:
