Rename fletch -> dartino

samples/github/android/GithubSample/app/build.gradle

 apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 22
     buildToolsVersion "23.0.0"
 
     defaultConfig {
-        applicationId "com.google.fletch.githubsample"
+        applicationId "com.google.dartino.githubsample"
         minSdkVersion 21
         targetSdkVersion 22
         versionCode 1
         versionName "1.0"
     }
 
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
 
     sourceSets {
         main {
             java.srcDir '../../../generated/immi/java'
             java.srcDir '../../../../../pkg/immi_samples/lib/android/src/main'
         }
     }
 }
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     compile 'com.android.support:appcompat-v7:21.0.2'
     compile 'com.android.support:cardview-v7:21.0.+'
     compile 'com.android.support:recyclerview-v7:21.0.+'
 }