Switched to Jenkins for builds, fixed a proguard warning with Retrolambda

.travis.yml

-language: android
-script:
-- "./gradlew clean assembleDebug assembleRelease -x lintVitalRelease check"
-android:
-  components:
-  - tools
-  - build-tools-23.0.2
-  - android-23
-  - extra-android-m2repository
-before_cache:
-- rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
-cache:
-  directories:
-  - "$HOME/.gradle/caches/"
-  - "$HOME/.gradle/wrapper/"
-  sudo: false
-before_install:
-  - export JAVA7_HOME=/usr/lib/jvm/java-7-oracle
-  - export JAVA8_HOME=/usr/lib/jvm/java-8-oracle
-  - export JAVA_HOME=$JAVA7_HOME
-  - openssl aes-256-cbc -K $encrypted_0794f823ff24_key -iv $encrypted_0794f823ff24_iv
-    -in signing.gradle.enc -out app/signing.gradle -d
-deploy:
-  provider: releases
-  api_key:
-    secure: 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
-  file_glob: true
-  file: app/build/outputs/apk/QuasselDroidNG-release-*-build*.apk
-  on:
-    repo: justjanne/QuasselDroid-ng

app/proguard-rules.pro

@@ -65,3 +65,8 @@
 -keepclassmembers class * extends de.greenrobot.event.util.ThrowableFailureEvent {
     <init>(java.lang.Throwable);
 }
+
+#########################################
+## RetroLambda                         ##
+#########################################
+-dontwarn java.lang.invoke.*
\ No newline at end of file