fixed travis apk build bug

.travis.yml

@@ -50,7 +50,7 @@ before_script:
 script: cd android_app && ./gradlew testDebug assembleAndroidTest assembleDebug
 
 before_deploy:
-  - ln -s app/build/outputs/apk/debug/app-debug.apk openScale-${TAG}-build.apk
+  - ln -s app/build/outputs/apk/debug/openScale-debug.apk openScale-${TAG}-build.apk
   - git tag -f travis-${TAG}-build
   - git remote add gh
     https://${OWNER}:${GITHUB_API_KEY}@github.com/${TRAVIS_REPO_SLUG}.git

android_app/app/build.gradle

@@ -88,6 +88,9 @@ android {
     }
 
     buildTypes {
+        debug {
+            archivesBaseName = "openScale"
+        }
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'