Update to android things sdk 0.6

Change-Id: I68379a68b93dee3d5e401196df97e4d211c6dcc2

Author: mangini

app/build.gradle

@@ -16,11 +16,11 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.2'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.2'
     defaultConfig {
         applicationId "com.example.androidthings.gattserver"
-        minSdkVersion 24
+        minSdkVersion 26
         targetSdkVersion 25
         versionCode 1
         versionName "1.0"
@@ -32,7 +32,3 @@ android {
         }
     }
 }
-
-dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-}

build.gradle

@@ -16,10 +16,11 @@
 
 buildscript {
     repositories {
+        google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:3.0.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip