upgrade dependencies, fix some warnings (#1747)

* upgrade dependencies, fix some warnings

* fix tests

app/src/test/java/com/keylesspalace/tusky/FilterTest.kt

@@ -11,6 +11,7 @@ import com.keylesspalace.tusky.fragment.SFragment
 import com.keylesspalace.tusky.network.MastodonApi
 import com.nhaarman.mockitokotlin2.mock
 import okhttp3.Request
+import okio.Timeout
 import org.junit.Assert.assertFalse
 import org.junit.Assert.assertTrue
 import org.junit.Before
@@ -99,6 +100,10 @@ class FilterTest {
                         )
                 )
             }
+
+            override fun timeout(): Timeout {
+                throw Error("not implemented")
+            }
         })
 
         activity.mastodonApi = apiMock

app/src/test/java/com/keylesspalace/tusky/TuskyApplication.kt

@@ -18,13 +18,9 @@ package com.keylesspalace.tusky
 import android.app.Application
 import android.content.Context
 import android.content.res.Configuration
-import android.util.Log
 import androidx.emoji.text.EmojiCompat
 import com.keylesspalace.tusky.util.LocaleManager
-import dagger.android.DispatchingAndroidInjector
-import dagger.android.HasAndroidInjector
 import de.c1710.filemojicompat.FileEmojiCompatConfig
-import javax.inject.Inject
 
 // override TuskyApplication for Robolectric tests, only initialize the necessary stuff
 class TuskyApplication : Application() {