Improve image_picker android dependencies (#715)

diff --git a/packages/image_picker/CHANGELOG.md b/packages/image_picker/CHANGELOG.md
index a730bbb..7c5d0b0 100644
--- a/packages/image_picker/CHANGELOG.md
+++ b/packages/image_picker/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 0.4.8
+
+* Replace the full `com.android.support:appcompat-v7` dependency with `com.android.support:support-core-utils`, which results in smaller APK sizes.
+* Upgrade support library to 27.1.1
+
 ## 0.4.7
 
 * Added missing video_player package dev dependency.
diff --git a/packages/image_picker/android/build.gradle b/packages/image_picker/android/build.gradle
index 7192ad7..dd14bee 100755
--- a/packages/image_picker/android/build.gradle
+++ b/packages/image_picker/android/build.gradle
@@ -1,4 +1,4 @@
-group 'com.yourcompany.image_picker'
+group 'io.flutter.plugins.imagepicker'
 version '1.0-SNAPSHOT'
 
 buildscript {
@@ -34,5 +34,5 @@
 }
 
 dependencies {
-    api 'com.android.support:appcompat-v7:27.1.0'
+    implementation 'com.android.support:support-core-utils:27.1.1'
 }
diff --git a/packages/image_picker/pubspec.yaml b/packages/image_picker/pubspec.yaml
index 44f4679..b311fca 100755
--- a/packages/image_picker/pubspec.yaml
+++ b/packages/image_picker/pubspec.yaml
@@ -5,7 +5,7 @@
   - Flutter Team <flutter-dev@googlegroups.com>
   - Rhodes Davis Jr. <rody.davis.jr@gmail.com>
 homepage: https://github.com/flutter/plugins/tree/master/packages/image_picker
-version: 0.4.7
+version: 0.4.8
 
 flutter:
   plugin: