Apply two bugfixes and fix a typo
Apply two bugfixes and fix a typo

1. COMPONENTS contained a comma, and that is not a delimiter in a bash
   array notation.
2. In addition to the SYMFONY_ENV, also export the APP_ENV to allow
   StepupRA to correctly determine it's symfony environment to run the
   build in.
3. Typo was fixed

SURFnet/Stepup-Build