Update react-native to 0.61.2

Author: friederbluemle

.gitattributes

@@ -1 +1 @@
-*.pbxproj -text
+*.pbxproj -text

.gitignore

@@ -1,14 +1,10 @@
-estimote-react-native-proximity-*.tgz
-example/package-lock.json
-Pods
-
 # OSX
 #
 .DS_Store
 
 # Xcode
 #
-build
+build/
 *.pbxuser
 !default.pbxuser
 *.mode1v3
@@ -28,22 +24,23 @@ project.xcworkspace
 
 # Android/IntelliJ
 #
-build
+build/
 .idea
 .gradle
 local.properties
 *.iml
 
 # node.js
 #
-node_modules
+node_modules/
 npm-debug.log
 yarn-error.log
 
 # BUCK
-buck-out
-\.buckd
+buck-out/
+\.buckd/
 *.keystore
+!debug.keystore
 
 # fastlane
 #
@@ -58,3 +55,5 @@ buck-out
 
 # Bundle artifact
 *.jsbundle
+
+*.tgz

.npmignore

@@ -0,0 +1 @@
+example/

android/.npmignore

@@ -0,0 +1,10 @@
+*.iml
+.DS_Store
+.gradle/
+.idea
+.npmignore
+build/
+gradle/
+gradlew
+gradlew.bat
+local.properties

android/build.gradle

@@ -1,36 +1,53 @@
+def safeExtGet(prop, fallback) {
+    rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
+}
+
 buildscript {
-    repositories {
-        google()
-        jcenter()
-    }
-    dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
+    // The Android Gradle plugin is only required when opening the android folder stand-alone.
+    // This avoids unnecessary downloads and potential conflicts when the library is included as a
+    // module dependency in an application project.
+    if (project == rootProject) {
+        repositories {
+            google()
+            jcenter()
+        }
+        dependencies {
+            classpath 'com.android.tools.build:gradle:3.5.1'
+        }
     }
 }
 
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 28
-    buildToolsVersion "28.0.3"
+    compileSdkVersion safeExtGet('compileSdkVersion', 28)
+    buildToolsVersion safeExtGet('buildToolsVersion', '28.0.3')
     defaultConfig {
-        minSdkVersion 18
-        targetSdkVersion 28
-        versionCode 1
-        versionName "1.0"
+        minSdkVersion safeExtGet('minSdkVersion', 18)
+        targetSdkVersion safeExtGet('targetSdkVersion', 28)
     }
     lintOptions {
         abortOnError false
     }
 }
 
 repositories {
+    mavenLocal()
+    maven {
+        // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
+        url "$rootDir/../node_modules/react-native/android"
+    }
+    maven {
+        // Android JSC is installed from npm
+        url "$rootDir/../node_modules/jsc-android/dist"
+    }
+    google()
     jcenter()
-    maven { url 'https://maven.google.com' }
 }
 
 dependencies {
-    implementation 'com.facebook.react:react-native:+'
+    //noinspection GradleDynamicVersion
+    implementation "com.facebook.react:react-native:+"  // From node_modules
     implementation 'com.estimote:proximity-sdk:1.0.3'
     implementation 'com.estimote:scanning-plugin:0.25.2'
 }