Transitive dependencies ignore

[jensens]

At the moment, in setup.py, it ignores direct dependencies, but not transitive.
Example:
A package depends on plone.base, which is configured to ignore Zope, but it does not expand on Zope and so Acquisition is added as dependency.

[jensens]

Its not declared correctly, fixed in #79

[jensens]

Even with #79 merged, some problems are left, this is described in reinout/z3c.dependencychecker#111

[gforcada]

As this is to be fixed in z3c.dependencychecker we can close this one here, as there is nothing to be done within plone/meta to fix it :)