Create repositories from generic-setup folder instead of single file.

This moves repository creation in one place taking filename as repository-id.
As a side-effect it adds the possibility to create multiple repositories at once.
Make sure repositores are first in content order.
Add separate section to configure portal navigation (repository).
Merge pull request #672 from 4teamwork/deif-repo-setup

Change generic setup profile repository installation
Update changelog after release 4.0.4 from 4.0-stable branch.

Additionally I fix the format in the changelog entry.
Merge pull request #673 from 4teamwork/pg_4.0.4_release

Update changelog after release 4.0.4 from 4.0-stable branch.
Disable docproperty updating in YearfolderStorer process.

The `YearFolderStorer` has to change security context (`AccessControl.SecurityManagement.SpecialUsers.system`) to move the forwarding and their containing documents to the yearfolder. Therefore we have to disable the DocProperty updating during the YearFolderStorer process, because the `SpecialUsers.system` does not have a userid etc.