Update .travis.yml

Author: darkal

.travis.yml

@@ -1,7 +1,6 @@
 language: android
 jdk: oraclejdk8
 dist: trusty
-sudo: required
 global_env: _JAVA_OPTIONS=-Xmx4g
 
 android:
@@ -21,3 +20,6 @@ before_script:
     - mkdir "$ANDROID_HOME/licenses" || true
     - echo -e "\n8933bad161af4178b1185d1a37fbf41ea5269c55" > "$ANDROID_HOME/licenses/android-sdk-license"
     - echo -e "\n84831b9409646a918e30573bab4c9c91346d8abd" > "$ANDROID_HOME/licenses/android-sdk-preview-license"
+    - emulator -avd test -no-skin -no-audio -no-window &
+    - android-wait-for-emulator
+    - adb shell input keyevent 82 &