Merge remote-tracking branch 'origin/dev' into dev

.github/CONTRIBUTING.md

@@ -11,6 +11,7 @@ Do not report crashes in the GitHub issue tracker. NewPipe has an automated cras
 
 * Search the [existing issues](https://github.com/TeamNewPipe/NewPipe/issues) first to make sure your issue/feature hasn't been reported/requested before
 * Check whether your issue/feature is already fixed/implemented
+* Check if the issue still exists in the latest release/beta version
 * If you are an Android/Java developer, you are always welcome to fix/implement an issue/a feature yourself. PRs welcome!
 * We use English for development. Issues in other languages will be closed and ignored.
 * Please only add *one* issue at a time. Do not put multiple issues into one thread.

app/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 27
-    buildToolsVersion '27.0.1'
+    buildToolsVersion '27.0.3'
 
     defaultConfig {
         applicationId "org.schabi.newpipe"

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Thu Nov 09 12:44:58 CET 2017
+#Fri Mar 30 10:42:05 CEST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.3.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip