Flipper Release: v0.23.4

Summary:
# New Features

- Select plugins to include in your exports.

# Fixes and chores

- Run TSC in Travis.
- Restore Android build in Travis.

[Full Changelog](https://github.com/facebook/flipper/compare/v0.23.3...v0.23.4)

Reviewed By: jknoxville, danielbuechele

Differential Revision: D16559674

fbshipit-source-id: 919f758f8750d26d9e49b6721d05264880d0abc5

docs/getting-started.md

@@ -50,10 +50,10 @@ repositories {
 }
 
 dependencies {
-  debugImplementation 'com.facebook.flipper:flipper:0.23.3'
+  debugImplementation 'com.facebook.flipper:flipper:0.23.4'
   debugImplementation 'com.facebook.soloader:soloader:0.5.1'
 
-  releaseImplementation 'com.facebook.flipper:flipper-noop:0.23.3'
+  releaseImplementation 'com.facebook.flipper:flipper-noop:0.23.4'
 }
 ```
 
@@ -108,7 +108,7 @@ We support both Swift and Objective-C for Flipper with CocoaPods as build and di
 ```ruby
 project 'MyApp.xcodeproj'
 swift_version = "4.1"
-flipperkit_version = '0.23.3'
+flipperkit_version = '0.23.4'
 
 target 'MyApp' do
   platform :ios, '9.0'
@@ -140,7 +140,7 @@ end
 ```ruby
 project 'MyApp.xcodeproj'
 swift_version = "4.1"
-flipperkit_version = '0.23.3'
+flipperkit_version = '0.23.4'
 
 target 'MyApp' do
   platform :ios, '9.0'