Add ZeroDMA to Travis dependencies

Author: PaintYourDragon

.travis.yml

@@ -15,12 +15,12 @@ before_install:
    - source <(curl -SLs https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/install.sh)
 
 install:
-   - arduino --install-library "Adafruit ILI9341"
+   - arduino --install-library "Adafruit ILI9341" "Adafruit Zero DMA Library"
 
 script:
    - build_main_platforms
 
 # Generate and deploy documentation
 after_success:
   - source <(curl -SLs  https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/library_check.sh)
-  - source <(curl -SLs  https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/doxy_gen_and_deploy.sh)
+  - source <(curl -SLs  https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/doxy_gen_and_deploy.sh)