We need to migrate from deprecated react-native-fabric to react-native-firebase.
This PR enables following Firebase features:
* Analytics
* Crashlytics
* Performance

It also tracks screen view without the necessity of HOC.

Future work:
I won't do it in this PR because it's large enough, but we need to log more app events, like 'sent_message', 'open_admin', 'media_upload', etc.

* update IOS react native to 0.59.8

* update Android react native to 0.59.8

* fix eslint errors

* Android debug working

* Android build

* Fix lint

* Making jest happy

* Update CircleCI android image

* Fix android build

* Use 32 bits

* Fix iOS build

* Update detox

* Use new Xcode build system

* Use old build system

* Update realm (64 bits support)

* v2

* Working on Android 0.57.3

* Drawer working

* Removing v1 navigator

* - Splash screen
- Icons changed

* Deeplink

* Remove EventEmitter from CreateChannelView

* Android search

* Android notifications

* OAuth

* Fix search props

* Lint and tests fixed

* Fix android build

* Improvements on iPhone X* usage

* Fix detox

* Fix android build

* Room.f added to RoomView.shouldComponentUpdate

* Animations on RoomsListView and RoomView

* Fix topbar buttons on Android

* [NEW] Use community JSC for Android

* Quick fix on unread chats

<!-- INSTRUCTION: Keep the line below to notify all core developers about this new PR -->
@RocketChat/ReactNative

<!-- INSTRUCTION: Inform the issue number that this PR closes, or remove the line below -->

<!-- INSTRUCTION: Tell us more about your PR with screen shots if you can -->

<!-- INSTRUCTION: Keep the line below to notify all core developers about this new PR -->
@RocketChat/ReactNative

<!-- INSTRUCTION: Inform the issue number that this PR closes, or remove the line below -->
- [x] Crop image
- [x] Type image description (like web)
- [x] Show upload progress
- [x] "Try again" in case of error
- [x] Cancel upload while in progress
- [x] [Android] Zoom on photos

<!-- INSTRUCTION: Tell us more about your PR with screen shots if you can -->
![image](https://user-images.githubusercontent.com/804994/42526934-a12da304-844d-11e8-8668-f3d69369726a.png)
![image](https://user-images.githubusercontent.com/804994/42527829-297945fe-8450-11e8-9f0e-9e668dd33043.png)

<!-- INSTRUCTION: Keep the line below to notify all core developers about this new PR -->
@RocketChat/ReactNative

<!-- INSTRUCTION: Inform the issue number that this PR closes, or remove the line below -->
Closes #342 

<!-- INSTRUCTION: Tell us more about your PR with screen shots if you can -->

* Changed the way we read RocketChat settings since setting.type won't be returned from server anymore

* Permissions

* Unnecessary action sheet render

* Update gradle

* Switched testServer to use blob

* RoomsListHeader search fixed

* Runs loadMessagesForRoom only if room has at least 20 rows

* - Logout if user's token expired
- Removed update avatar logic
- Profile dialog border on android

* - Animations disabled
- CircleCI set

* Tests updated

* "eventType argument is required" fix

* react-native-img-cache removed

* Improve list render

* Support <http://link/Text> inside markdown