Try to fix the travis build, which is failing because conditional includes do...

Try to fix the travis build, which is failing because conditional includes do not work in .ino files for the ino processor ?

.travis.yml

@@ -24,6 +24,8 @@ before_script:
   - sudo rm -rf /usr/share/arduino/libraries/Robot_Control
   # change back to home directory for compiling
   - cd $TRAVIS_BUILD_DIR
+  # copy TMC and L6470 libraries to arduino dir, as conditional includes do not work in .ino files
+  - cp -r ../ArduinoAddons/Arduino_1.x.x/libraries/ /usr/share/arduino/libraries/  
   # ino needs files in src directory
   - ln -s Marlin src
   # remove Marlin.pde as it confuses ino after it finds Marlin.ino