Update README.md

Small typo
Update README.md

Typo with tasks.
Address issue #3. Allow install in a custom directory. By default no root user is checked.
Address issue #3. Allow install in a custom directory. By default no root user is checked.
Add "post-release" tasks in default environment yaml.
Add composer configuration.
Add MIT license.
Tweak on composer.
Composer tweak.
Tweaks on the composer.json file.
Remove version from composer.
Change general config file.
Change SCM configs.
Tweak config and logs.
Remove SCM config.
Remove SCM config.
Allow override parameters in Host configuration.
Add deployment status and execute post-deployment tasks if deploy failed (only execute branch reverse and clone removal).
Update composer.json

Add bin/mage to composer. See http://getcomposer.org/doc/articles/vendor-binaries.md.
add documentation for installing via composer