Add Arduino examples to CI (earlephilhower#158)

* Add Arduino examples to CI
* Remove bad example sketches

Author: earlephilhower

tests/common.sh

@@ -22,6 +22,10 @@ function skip_ino()
 /UserChipSelectFunction/
 /UserSPIDriver/
 /Adafruit_TinyUSB_Arduino/
+/ArduinoISP/
+/p08_DigitalHourglass/
+/p13_TouchSensorLamp/
+/StringComparisonOperators/
 EOL
     echo $ino | grep -q -F "$skiplist"
     echo $(( 1 - $? ))
@@ -233,6 +237,7 @@ function build_sketches_with_arduino()
 
     # Compile sketches
     echo -e "travis_fold:start:sketch_test"
+    build_sketches $HOME/arduino_ide $HOME/arduino_ide/examples "-l $HOME/Arduino/libraries" $build_mod $build_rem
     build_sketches $HOME/arduino_ide $TRAVIS_BUILD_DIR/libraries "-l $HOME/Arduino/libraries" $build_mod $build_rem
     echo -e "travis_fold:end:sketch_test"