Flipper Release: v0.18.0

Summary:
= Highlights

This is a bit of a boring release, to be frank. Most of the stuff happened behind the scenes, but a lot of preparation for interesting stuff happened behind the scenes, so stay tuned!

= Fixes

- Upgraded to Electron 4.0.8 (e0127b8438)
- Fixes to node expansion in the layout inspector.
- Connectivity improvements.

See https://github.com/facebook/flipper/compare/v0.17.1...v0.18.0 for reference.

Reviewed By: jknoxville

Differential Revision: D14477605

fbshipit-source-id: 0d927ba08fa5fab9d95c76ec763f5b9dd5bc104d

docs/getting-started.md

@@ -48,7 +48,7 @@ repositories {
 }
 
 dependencies {
-  debugImplementation 'com.facebook.flipper:flipper:0.17.1'
+  debugImplementation 'com.facebook.flipper:flipper:0.18.0'
   debugImplementation 'com.facebook.soloader:soloader:0.5.1'
 }
 ```
@@ -105,7 +105,7 @@ project 'MyApp.xcodeproj'
 source 'https://github.com/facebook/flipper.git'
 source 'https://github.com/CocoaPods/Specs'
 swift_version = "4.1"
-flipperkit_version = '0.17.1'
+flipperkit_version = '0.18.0'
 
 target 'MyApp' do
   platform :ios, '9.0'
@@ -180,7 +180,7 @@ project 'MyApp.xcodeproj'
 source 'https://github.com/facebook/flipper.git'
 source 'https://github.com/CocoaPods/Specs'
 swift_version = "4.1"
-flipperkit_version = '0.17.1'
+flipperkit_version = '0.18.0'
 
 target 'MyApp' do
   platform :ios, '9.0'