Switch to ARM, Travis doesn't support KVM x86

.travis.yml

@@ -9,7 +9,7 @@ android:
     - platform-tools
     - tools
     - android-22
-    - sys-img-x86-android-22
+    - sys-img-armeabi-v7a-android-22
 
 before_install:
   # -in is a switch to openssl
@@ -20,7 +20,7 @@ before_install:
   - git submodule update --init --recursive
 
 before_script:
-  - echo no | android create avd --force -n test -t android-22 --abi default/x86
+  - echo no | android create avd --force -n test -t android-22 --abi armeabi-v7
   - emulator -avd test -no-skin -no-audio -no-window &
   - android-wait-for-emulator
   - adb shell input keyevent 82 &