[firebase-release] Manual - Removed change log and reset repo after 2… (#192)

* [firebase-release] Manual - Removed change log and reset repo after 2.3.0 release

* Update localized gstatic CDN links from 2.2.1 to 2.3.0.

Author: bojeil-google

README.md

@@ -62,17 +62,17 @@ Localized versions of the widget are available through the CDN. To use a localiz
 localized JS library instead of the default library:
 
 ```html
-<script src="https://www.gstatic.com/firebasejs/ui/2.2.1/firebase-ui-auth__{LANGUAGE_CODE}.js"></script>
-<link type="text/css" rel="stylesheet" href="https://www.gstatic.com/firebasejs/ui/2.2.1/firebase-ui-auth.css" />
+<script src="https://www.gstatic.com/firebasejs/ui/2.3.0/firebase-ui-auth__{LANGUAGE_CODE}.js"></script>
+<link type="text/css" rel="stylesheet" href="https://www.gstatic.com/firebasejs/ui/2.3.0/firebase-ui-auth.css" />
 ```
 
 where `{LANGUAGE_CODE}` is replaced by the code of the language you want. For example, the French
 version of the library is available at
-`https://www.gstatic.com/firebasejs/ui/2.2.1/firebase-ui-auth__fr.js`. The list of available
+`https://www.gstatic.com/firebasejs/ui/2.3.0/firebase-ui-auth__fr.js`. The list of available
 languages and their respective language codes can be found at [LANGUAGES.md](LANGUAGES.md).
 
 Right-to-left languages also require the right-to-left version of the stylesheet, available at
-`https://www.gstatic.com/firebasejs/ui/2.2.1/firebase-ui-auth-rtl.css`, instead of the default
+`https://www.gstatic.com/firebasejs/ui/2.3.0/firebase-ui-auth-rtl.css`, instead of the default
 stylesheet. The supported right-to-left languages are Arabic (ar), Farsi (fa), and Hebrew (iw).
 
 Internationalized binaries are currently not available in the GitHub repository due to dependencies

changelog.txt

@@ -1,4 +0,0 @@
-feature - Adds firebaseui.auth.AuthUI.getInstance(appId) to get the corresponding AuthUI instance as specified by the provided appId.
-feature - Adds a destroy method to destroy an AuthUI instance.
-fixed - Fixes Nascar buttons getting grayed when user tabs through them.
-fixed - Hides cancel button when only Email provider is used and accountchooser.com is disabled.