Add Travis CI

Author: clue

.gitignore

@@ -1,4 +1,2 @@
-.*
-*.lock
-vendor
-phpunit.xml
+vendor/
+composer.lock

.travis.yml

@@ -0,0 +1,31 @@
+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
+  - 7.1
+  - 7.2
+  - hhvm # ignore errors, see below
+
+# lock distro so new future defaults will not break the build
+dist: trusty
+
+matrix:
+  allow_failures:
+    - php: hhvm
+
+services:
+  - mysql
+
+sudo: false
+
+install:
+  - composer install --no-interaction
+
+before_script:
+  - mysql -e 'CREATE DATABASE IF NOT EXISTS test;'
+
+script:
+  - DB_USER=root DB_PASSWD= ./vendor/bin/phpunit --coverage-text

README.md

@@ -1,5 +1,7 @@
 # MySQL
 
+[![Build Status](https://travis-ci.org/friends-of-reactphp/mysql.svg?branch=master)](https://travis-ci.org/friends-of-reactphp/mysql)
+
 Async, [Promise](https://github.com/reactphp/promise)-based MySQL database client
 for [ReactPHP](https://reactphp.org/).
 
@@ -60,6 +62,11 @@ This will install the latest supported version:
 $ composer require react/mysql:^0.2
 ```
 
+This project aims to run on any platform and thus does not require any PHP
+extensions and supports running on legacy PHP 5.4 through current PHP 7+ and
+HHVM.
+It's *highly recommended to use PHP 7+* for this project.
+
 ## Tests
 
 To run the test suite, you first need to clone this repo and then install all