Issues with current version of react-native

[malonehedges]

Initially react-native run-ios was unrecognized. I updated the react-native version as suggested in this StackOverflow answer. Now it will fail to build with the following error:

** BUILD FAILED **


The following commands produced analyzer issues:
	Analyze Modules/RCTRedBox.m

(1 command with analyzer issues)

The following build commands failed:
	Ld build/Build/Products/Debug-iphonesimulator/ReactNativeRedditReader.app/ReactNativeRedditReader normal x86_64
(1 failure)

Installing build/Build/Products/Debug-iphonesimulator/ReactNativeRedditReader.app
An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=22):
Failed to install the requested application
The bundle identifier of the application could not be determined.
Ensure that the application's Info.plist contains a value for CFBundleIdentifier.
Print: Entry, ":CFBundleIdentifier", Does Not Exist

Command failed: /usr/libexec/PlistBuddy -c Print:CFBundleIdentifier build/Build/Products/Debug-iphonesimulator/ReactNativeRedditReader.app/Info.plist
Print: Entry, ":CFBundleIdentifier", Does Not Exist

cc @smartapant

[smartapant]

@malonehedges quite an old version of RN was used in this app, so updating it to the newest one is really painful

[malonehedges]

@smartapant after I left the issue I actually went and updated the app to the most recent react-native version and ES6 syntax haha

I've published it under the MIT License at malonehedges/RedditReader.

I didn't submit a PR because I started from scratch and changed a pretty significant amount of the coding style. Let me know if you'd be interested in merging somehow!