Update .travis.yml to notify slack and test with node
Update .travis.yml to notify slack and test with node

mattrayner/cordova-plugin-vuforia,thisisbd/cordova-plugin-vuforia,Laureckis/cordova-plugin-vuforia-background,thisisbd/cordova-plugin-vuforia,mattrayner/cordova-plugin-vuforia,thisisbd/cordova-plugin-vuforia,happinov/cordova-plugin-vuforia,Laureckis/cordova-plugin-vuforia-background,happinov/cordova-plugin-vuforia