[infer][PR] Update Android Plugin for Gradle (APG) and dependencies

Summary:
* Makes running Android example simpler - APG 2.2.0 automatically downloads dependencies so long as the user has previously accepted the Android SDK License.
* APG 2.2.0 requires Gradle 2.14 or newer, so updated to latest.
* Added `buildOptions.abortOnError false` so the build doesn't report any lint issues - the sample is designed to show Infer working, not Android lint.
Closes https://github.com/facebook/infer/pull/595

Reviewed By: dulmarod

Differential Revision: D4642707

Pulled By: jvillard

fbshipit-source-id: a2b2e02

examples/android_hello/app/build.gradle

@@ -4,6 +4,8 @@ android {
     compileSdkVersion 22
     buildToolsVersion "22.0.1"
     
+    lintOptions.abortOnError false
+
     defaultConfig {
         applicationId "infer.inferandroidexample"
         minSdkVersion 8

examples/android_hello/build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.0.0'
+        classpath 'com.android.tools.build:gradle:2.2.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

examples/android_hello/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-2.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.4-bin.zip