Merge pull request #163 from everalbum/master

bump Android libs

android/build.gradle

@@ -4,19 +4,19 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.3.1'
+        classpath 'com.android.tools.build:gradle:2.3.0'
     }
 }
 
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.1"
+    compileSdkVersion 26
+    buildToolsVersion "25.0.3"
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 22
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
     }
@@ -26,5 +26,6 @@ android {
 }
 
 dependencies {
-    compile 'com.facebook.react:react-native:+'
+    //noinspection GradleDynamicVersion
+    provided 'com.facebook.react:react-native:' + project.ext.reactNative
 }