Fixes failing of tests after addition of multidex.

Author: knight-shade

app/build.gradle

@@ -48,10 +48,11 @@ dependencies {
     compile 'com.facebook.fresco:fresco:1.3.0'
     compile 'com.facebook.stetho:stetho:1.5.0'
 
-    compile 'com.android.support:multidex:1.0.2'
+    compile 'com.android.support:multidex:1.0.3'
 
     testCompile 'junit:junit:4.12'
     testCompile 'org.robolectric:robolectric:3.7.1'
+    testCompile "org.robolectric:multidex:3.4.2"
 
     testCompile 'com.squareup.okhttp3:mockwebserver:3.8.1'
     androidTestCompile 'com.squareup.okhttp3:mockwebserver:3.8.1'