Updated Code Styles and Copyright for Android Studio 3.1

.gitignore

@@ -39,7 +39,8 @@ captures/
 .idea/*
 !.idea/codeStyleSettings.xml
 !.idea/checkstyle-idea.xml
-!/.idea/copyright/
+!.idea/copyright/
+!.idea/codeStyles/
 
 # External native build folder generated in Android Studio 2.2 and later
 .externalNativeBuild

driver-epaperdriverhat/src/main/java/com/leinardi/android/things/driver/epaperdriverhat/Epd.java

@@ -16,8 +16,6 @@
 
 package com.leinardi.android.things.driver.epaperdriverhat;
 
-import android.graphics.Color;
-
 import com.google.android.things.pio.Gpio;
 import com.google.android.things.pio.PeripheralManagerService;
 import com.google.android.things.pio.SpiDevice;
@@ -134,12 +132,12 @@ public void reset() throws IOException {
     }
 
     /**
-     * @return the width of the display
+     * Get the width of the display
      */
     public abstract int getDisplayWidth();
 
     /**
-     * @return the height of the display
+     * Get the height of the display
      */
     public abstract int getDisplayHeight();
 

gradle/wrapper/gradle-wrapper.properties

@@ -17,4 +17,4 @@ 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-4.5-all.zip

versions.gradle

@@ -21,7 +21,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.android_checkstyle_plugin = "1.0.0"
-versions.android_gradle_plugin = "3.0.1"
+versions.android_gradle_plugin = "3.1.0-beta1"
 versions.androidthings = "0.6-devpreview"
 versions.apache_commons = "2.5"
 versions.arch = hasProperty("ARCH_VERSION") ? getProperty("ARCH_VERSION") : "1.0.0"
@@ -164,8 +164,8 @@ ext.deps = deps
 
 def build_versions = [:]
 build_versions.min_sdk = 26
-build_versions.target_sdk = 26
-build_versions.build_tools = "26.0.2"
+build_versions.target_sdk = 27
+build_versions.build_tools = "27.0.3"
 build_versions.java_version = JavaVersion.VERSION_1_7
 build_versions.version_code = 'git rev-list --count HEAD'.execute().text.trim() as int
 ext.build_versions = build_versions