Add readme badges, license file, update branch alias

LICENSE

@@ -0,0 +1,20 @@
+Copyright (c) 2020 Jeremy Shipman, Leith Caldwell
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -7,6 +7,9 @@ http://www.paystation.co.nz
 API Docs: https://docs.paystation.co.nz/
 
 [![Build Status](https://travis-ci.org/burnbright/omnipay-paystation.png?branch=master)](https://travis-ci.org/burnbright/omnipay-paystation)
+[![Coverage Status](https://img.shields.io/scrutinizer/coverage/g/burnbright/omnipay-paystation.svg?style=flat)](https://scrutinizer-ci.com/g/burnbright/omnipay-paystation/code-structure)
+[![Code Quality](https://img.shields.io/scrutinizer/g/burnbright/omnipay-paystation.svg?style=flat)](https://scrutinizer-ci.com/g/burnbright/omnipay-paystation/?branch=master)
+[![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat)](LICENSE.md)
 [![Latest Stable Version](https://poser.pugx.org/burnbright/omnipay-paystation/version.png)](https://packagist.org/packages/burnbright/omnipay-paystation)
 [![Total Downloads](https://poser.pugx.org/burnbright/omnipay-paystation/d/total.png)](https://packagist.org/packages/burnbright/omnipay-paystation)
 

composer.json

@@ -39,7 +39,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "3.0.x-dev"
+            "dev-master": "3.1.x-dev"
         }
     },
     "prefer-stable": true