Dependency, gradle, etc. updates

.travis.yml

@@ -4,8 +4,8 @@ android:
   components:
     - tools
     - platform-tools
-    - build-tools-26.0.0
-    - android-26
+    - build-tools-27.0.2
+    - android-27
     - extra-android-support
     - extra-android-m2repository
     - extra-google-m2repository

app/build.gradle

@@ -14,9 +14,6 @@ android {
         lintOptions {
             abortOnError false
         }
-        jackOptions {
-            enabled true
-        }
     }
 
     compileOptions {

build.gradle

@@ -4,6 +4,7 @@ buildscript {
     apply from: './dependencies.gradle'
 
     repositories {
+        google()
         jcenter()
     }
     dependencies {
@@ -14,13 +15,14 @@ buildscript {
 
 allprojects {
     repositories {
+        google()
         jcenter()
         maven { url "https://jitpack.io" }
     }
 
     buildscript {
         repositories {
-            maven { url "https://plugins.gradle.org/m2/" }
+            google()
         }
     }
     apply plugin: "com.diffplug.gradle.spotless"
@@ -34,7 +36,3 @@ allprojects {
         }
     }
 }
-
-task clean(type: Delete) {
-    delete rootProject.buildDir
-}

dependencies.gradle

@@ -1,13 +1,13 @@
 ext.versions = [
         minSdk            : 21,
-        compileSdk        : 26,
-        buildTools        : '26.0.0',
+        compileSdk        : 27,
+        buildTools        : '27.0.2',
         publishVersion    : '0.1.3.1',
         publishVersionCode: 14,
-        gradlePlugin      : '2.3.2',
-        spotlessPlugin    : '3.4.0',
-        supportLib        : '25.3.1',
-        materialDialogs   : '0.9.4.5',
+        gradlePlugin      : '3.0.1',
+        spotlessPlugin    : '3.8.0',
+        supportLib        : '27.0.2',
+        materialDialogs   : '0.9.6.0',
         bridge            : '5.1.2',
         inquiry           : '5.0.0'
 ]

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Wed Aug 24 19:51:45 CDT 2016
+#Fri Jan 05 14:44:01 CST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip