andres-montanez/Magallanes — pull request #117 by nicolas-san (2014-08-27 20:32:32+00:00)
Title: Add $preCommand option to composer builin task

I need to set SYMFONY_ENV to prod, because of
https://github.com/symfony/symfony-standard/issues/662 .
So I add some pre command option.
I use it this way : - composer/install: {preCommand: SYMFONY_ENV=prod}
I let the dev parameter, I base on dev branche.