Release version 2.4.7

[tobiasherp]

Could we have a release 2.4.7, please?
The fix for issue #2 is quite important ...

[dvarrazzo]

Hi @tobiasherp

Can you prepare me a branch with exactly the stuff you would like to see released?

I will do it without further QA as I'm in no position to validate Zope stuff.

Thank you.

[tobiasherp]

Sorry I was not around for a while ... I hope I'll be able to see into this soon.

As a next step, we should eggify the package to make it installable the standard way, without this copying or symlinking. But this would probably be another issue and another release version.

[tobiasherp]

The changes are not very interesting; however, there is a pull-request #9.