Merge pull request #256 from 4teamwork/lg-refactor-document-from-template

Refactor "document from template" view
Updated ftw.zipexport registry entry to multi-value field.
Merge pull request #258 from 4teamwork/lk_update_zipexport_registry

Updated ftw.zipexport registry entry to multi-value field.
Don't pin setuptools&co any more.
Fixed LDAP credentials example in README.
Proof-of-concept implementation for setting docProperties in templates.