bump arduino ide version to 1.8.7

dhalbert · dhalbert · commit 690f46db1aa1 · 2018-12-12T13:48:42.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -9,7 +9,7 @@ git:
   quiet: true
 env:
   global:
-     - ARDUINO_IDE_VERSION="1.8.6"
+     - ARDUINO_IDE_VERSION="1.8.7"
 before_install:
   - source $TRAVIS_BUILD_DIR/install.sh
 script:
