Updated travis to test for PRINTCOUNTER

.travis.yml

   ### I2C PANELS ###
   #
   # LCD_I2C_SAINSMART_YWROBOT
-  # Failing at the moment needs different library 
+  # Failing at the moment needs different library
   #- restore_configs
   #- opt_enable LCD_I2C_SAINSMART_YWROBOT
   #- build_marlin
   - opt_set_adv Z2_MAX_PIN 2
   - build_marlin
   #
+  # Test PRINTCOUNTER
+  #
+  - restore_configs
+  - opt_enable PRINTCOUNTER
+  - build_marlin
+  #
   #
   ######## Example Configurations ##############
   #