update to scripts and FeatureRequirement

Hi Bernhard,

Juan suggested I ask you about updating the bin scripts and FeatureRequirement.  The following changes should allow everyone to run bin/newImage.sh and then load all the base packages in their new image.

The original pull request is here:
https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev/pull/15

Thank you,
David