Add :composer_version option for self-update/install specific release
Merge pull request #14 from nishigori/self-update-release-specify

Support composer.phar version specify
Add --no-interaction to composer commands

Also remove --no-scripts as discussed in https://github.com/capistrano/symfony/pull/1
Merge pull request #15 from capistrano/no-interaction

Add --no-interaction to composer commands
Update docs
Version 0.0.4