Updates to README introduction

Author: jamiehannaford

README.md

@@ -4,14 +4,6 @@ PHP SDK for OpenStack/Rackspace APIs
 
 [![Latest Stable Version](https://poser.pugx.org/rackspace/php-opencloud/v/stable.png)](https://packagist.org/packages/rackspace/php-opencloud) [![Travis CI](https://secure.travis-ci.org/rackspace/php-opencloud.png)](https://travis-ci.org/rackspace/php-opencloud) [![Total Downloads](https://poser.pugx.org/rackspace/php-opencloud/downloads.png)](https://packagist.org/packages/rackspace/php-opencloud)
 
-> **IMPORTANT NOTE**: With release 1.3, all of the file extensions have been
-  changed from `.inc` to `.php`. This means that any existing code must be
-  edited to use this new version.
-
-> **ANOTHER IMPORTANT NOTE**: the working branch (soon to be release 1.5) has
-  been substantially reorganized around namespaces and *all* of the file
-  locations/names have been changed.
-
 See the
 [COPYING](https://github.com/rackspace/php-opencloud/blob/master/COPYING)
 file for license and copyright information.
@@ -26,67 +18,45 @@ so that you can still use the SDK with a pure OpenStack instance
 (for example, see the `OpenStack` class (for OpenStack) and the
 `Rackspace` subclass).
 
-See the [Release Notes](https://github.com/rackspace/php-opencloud/releases)
-for what has changed in the latest release(s).
+Requirements
+------------
+* PHP >= 5.3.3
+* cURL extension for PHP
+
+Installation
+------------
+You must install this library through Composer:
 
-See the [php-opencloud wiki](https://github.com/rackspace/php-opencloud/wiki)
-for incidental notes mostly aimed at developers who are working *on* the
-SDK (and not developers working *with* the SDK).
+```
+# Install Composer
+curl -sS https://getcomposer.org/installer | php
 
-Downloading
------------
+# Require php-opencloud as a dependency
+php composer.phar require rackspace/php-opencloud:dev-master
+```
 
-Visit https://github.com/rackspace/php-opencloud/tags to see tagged releases
-that you can download.
+Once you have installed the library, you will need to load Composer's autoloader (which registers all the required
+namespaces):
 
-You can download the master branch using the
-GitHub "ZIP" button, above. However, this has the latest code and may not
-be as stable as the tagged branches.
+```php
+require 'vendor/autoload.php';
+```
+
+And you're ready to go!
 
 Support and Feedback
 --------------------
-Your feedback is appreciated! If you have specific problems or bugs with the
-**php-opencloud**
-language bindings, please file an issue via Github.
+Your feedback is appreciated! If you have specific problems or bugs with this SDK, please file an issue on Github.
 
-For general feedback and support requests, send an email to:
-
-[email protected]
+For general feedback and support requests, send an email to [email protected].
 
 You can also find assistance via IRC on #rackspace at freenode.net.
 
-Getting Started with OpenStack/Rackspace
-----------------------------------------
-To sign up for a Rackspace Cloud account, go to
-http://www.rackspace.com/cloud and follow the prompts.
-
-If you are working with an OpenStack deployment, you can find more
-information at http://www.openstack.org.
-
-### Requirements
-
-We are not able to test and validate every possible combination of PHP
-versions and supporting libraries, but here's our recommended minimum
-version list:
-
-* PHP 5.3 (note: Travis validates against 5.4 and 5.5 as well)
-* CURL extensions to PHP
-
-### Installation
-
-In the .zip or .tar file in which you received the library, everything under
-the `lib/` directory should be installed in a location that is accessible. If you're not using a dependency manager like Composer, you will have to reference the php-opencloud file (which registers the library namespaces):
-
-    // Include the autoloader
-    require_once '/path/to/lib/php-opencloud.php';
-
-Once the OpenCloud namespace is registered, you will be able to access all functionality by referencing the class's namespace (in full PSR-0 compliance). For more information about namespaces, check out [PHP's documentation](http://php.net/manual/en/language.namespaces.php).
-
 Contributing
 ------------
-If you'd like to contribute to **php-opencloud**, see the
-[HACKING.md](https://github.com/rackspace/php-opencloud/blob/master/HACKING.md)
-file in the root directory.
+If you'd like to contribute, see the
+[Contributing guide](https://github.com/rackspace/php-opencloud/blob/master/CONTRIBUTING.md) and the
+[TODO list](https://github.com/rackspace/php-opencloud/blob/master/TODO.md).
 
 Further Reading
 ---------------