As slapos.recipe.erp5 depends on Zope2 in order to generate Zope2 aware
scripts reuse this dependency and import needed method instead of
rewriting it.

Required utils are basename, tr and uname

By default whe should quote when replying unless explicitly set in preferences.

add dependency to ${perl:version} so that perl libraries will be rebuilt when perl version is updated.

proper cache plugin) rather than local dict.

Like SubversionClient, display a readable error message when git command could
not be executed.