Better apache compat

Merge pull request #10 from KevinDonaldson/master

Changing to use server variable instead of php function in Autoload.php

Proper environment checking

1.0.1

Update readme with better installation instructions

First stable

Hope there aren't any huge bugs! 🙏

ENV vendor dir config

Refactor vendor root configuration

 - allow for ENV variable as well as constant
 - remove `abstract_composer.php` shell "helper"
 - increase test coverage of Autoload.php
 - update README to reflect changes

Should close #5, gets #4 closer

0.3.0: Update composer.json

Fixed issue relating to stability requirements of composer

Initial "usage" release

0.1.0

Merge branch 'master' of ssh://github.com/mattwellss/magento-composer…