Fixed modman
minimum-stability is only usable in a root composer.json

See http://getcomposer.org/doc/04-schema.md#minimum-stability
Add magento-composer-installer dependency

Without this dependency this module won't be installable via composer
Change extras field to extra

The field is called extra, not extras, according to
http://getcomposer.org/doc/04-schema.md#extra and to
./composer.phar validate
Refactor to work with schema compliant composer.json
Merge pull request #2 from vinai-drive-by-commits/master

Update composer.json
Merge pull request #1 from therouv/master

Modul-Ordner in modman Datei
Merge branch 'master' into develop
[~BUGFIX] moved stability to extra part.
[~BUGIFX] removed packger from repository.
[~BUGFIX] added packager repository as submodule.