Version bump + note (#31)

* Bump version in install.sh as well

* Add a note about IDE version variable

Author: cleveHEX

README.md

@@ -42,6 +42,10 @@ notifications:
     on_failure: change
 ```
 
+**Choosing Arduino IDE version**
+
+You could use any version of IDE by setting `ARDUINO_IDE_VERSION` variable but we recommend keeping this variable unused because script gets updated and you then will not have to modify `.travis.yml` manually.
+
 ## Automated Example Verification Bash Functions
 
 `build_platform` will build all `.ino` examples in the repo using the passed platform. The platforms

install.sh

@@ -37,7 +37,7 @@ echo "########################################################################";
 
 # if .travis.yml does not set version
 if [ -z $ARDUINO_IDE_VERSION ]; then
-export ARDUINO_IDE_VERSION="1.8.6"
+export ARDUINO_IDE_VERSION="1.8.7"
 echo "NOTE: YOUR .TRAVIS.YML DOES NOT SPECIFY ARDUINO IDE VERSION, USING $ARDUINO_IDE_VERSION"
 fi