Update build tools, gradle, support libs, compile with 27

Clover/app/build.gradle

@@ -13,9 +13,9 @@ def getCommitHash = { ->
 }
 
 android {
-    compileSdkVersion 26
+    compileSdkVersion 27
     // update the travis config when changing this
-    buildToolsVersion '26.0.2'
+    buildToolsVersion '27.0.3'
 
     defaultConfig {
         minSdkVersion 15
@@ -124,7 +124,7 @@ android {
 }
 
 dependencies {
-    def supportVersion = '26.1.0'
+    def supportVersion = '27.1.0'
 
     implementation "com.android.support:support-v13:${supportVersion}"
     implementation "com.android.support:appcompat-v7:${supportVersion}"

Clover/app/src/main/java/org/floens/chan/core/saver/ImageSaver.java

@@ -21,7 +21,7 @@ import android.Manifest;
 import android.app.NotificationManager;
 import android.content.Context;
 import android.content.Intent;
-import android.support.v7.app.NotificationCompat;
+import android.support.v4.app.NotificationCompat;
 import android.widget.Toast;
 
 import org.floens.chan.R;

Clover/app/src/main/java/org/floens/chan/ui/service/SavingNotification.java

@@ -25,7 +25,7 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.support.annotation.Nullable;
-import android.support.v7.app.NotificationCompat;
+import android.support.v4.app.NotificationCompat;
 
 import org.floens.chan.R;
 

Clover/build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.0'
     }
 }
 

Clover/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Tue Oct 31 23:48:24 CET 2017
+#Wed Mar 28 12:15:28 CEST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip