Bumped deps version to use new format

Fix cocoapods install error and warning.
```
Fetching podspec for `react-native-webview` from `../node_modules/react-native-webview`
[!] The `react-native-webview` pod failed to validate due to 1 error:
    - WARN  | attributes: Missing required attribute `license`.
    - ERROR | version: The version of the spec should be higher than 0.
    - WARN  | license: Missing license type.
    - WARN  | source: Git sources should specify a tag.
```

* Fixes #81 
* Fixes #72

* add hideKeyboardAccessoryView option

* add hideKeyboardAccessoryView prop to reference

- Versions are back to normal and will now be powered by semantic-release
- I used the release of onLoadProgress feature to setup all the so I'll link it here to make sure it does not get lost 🎉 https://github.com/react-native-community/react-native-webview/pull/53

- This should trigger breaking and update to 2.0.0

BREAKING CHANGE: this is meant to break to update the version

* Added the onLoadProgress property to the iOS wkwebview and Android webview
* releases are now using semantic release and start at 2.1.0

This is just here to bump the release to match our current version.
I will cancel the release to NPM

BREAKING CHANGES
This will trigger a 2.0.0

* Added the onLoadProgress property to the iOS wkwebview and Android webview

* Added the onLoadProgress property to the iOS wkwebview and Android webview

* Added the onLoadProgress property to the iOS wkwebview and Android webview

* Added the onLoadProgress property to the iOS wkwebview and Android webview

Setup CircleCI and semantic-release

Minor update to README

Last Fixes before release

Fix Android WebView when using UTF-8 characters (garbled output)

taken from the last line of https://stackoverflow.com/a/10831462/728287

Fix WKWebView memory leak

Crucial documentation fix

Migrate Documentation

(Contains #51) Cleaning unused state and will mount

(Contains #50) Renaming rct rnc android to stay consistent with iOS

(Contains #49) Cleaning ios wkwebview useless file

Renaming/rct->rnc to fix ios build