fixing travis and ignore react warnings

playground/scripts/ignoreReactWarnings.rb

+#!/usr/bin/env ruby
+
+require 'pathname'
+
+$LOAD_PATH.unshift(__dir__ + "/../node_modules/detox/scripts/Xcodeproj/lib")
+$LOAD_PATH.unshift(__dir__ + "/../node_modules/detox/scripts/Nanaimo/lib")
+
+require 'xcodeproj'
+
+project = Xcodeproj::Project.open(__dir__ + "/../node_modules/react-native/React/React.xcodeproj")
+
+project.build_configuration_list['Release'].build_settings['WARNING_CFLAGS'] = ['-Wno-shorten-64-to-32','-Wno-unused-parameter','-Wno-unreachable-code','-Wno-deprecated-declarations','-Wno-extra-tokens','-Wno-unused-variable','-Wno-incompatible-pointer-types','-Wno-conditional-uninitialized','-Wno-undeclared-selector','-Wno-objc-protocol-property-synthesis']
+
+raise "Error: Unable to save Xcode project" unless project.save()

playground/scripts/postinstall.js

 shellUtils.exec.execSync(`rm yarn.lock`);
 shellUtils.exec.execSync(`rm -rf node_modules/react-native-navigation/node_modules`);
 shellUtils.exec.execSync(`rm -rf node_modules/react-native-navigation/playground`);
+shellUtils.exec.execSync(`./scripts/ignoreReactWarnings.rb`);

scripts/test.ios.js

 function run() {
   process.chdir('./playground');
   exec.execSync(`hardlink node_modules/react-native-navigation/ -u || true`);
+  const yarnCacheDir = exec.execSyncRead(`yarn cache dir`);
+  exec.execSync(`rm -rf ${yarnCacheDir}/*navigation*`);
   exec.execSync(`yarn install`);
   exec.execSync(`yarn run e2e release`);
   process.chdir('../');